Critical Parabolic-Type Problems / / Tomasz W. Dłotko, Yejuan Wang.

This self-contained book covers the theory of semilinear equations with sectorial operator going back to the studies of Yosida, Henry, and Pazy, which are deeply extended nowadays. The treatment emphasizes existence-uniqueness theory as a topic of functional analysis and examines abstract evolutiona...

Full description

Saved in:
Bibliographic Details
Superior document:Title is part of eBook package: De Gruyter DG Ebook Package English 2020
VerfasserIn:
MitwirkendeR:
Place / Publishing House:Berlin ;, Boston : : De Gruyter, , [2020]
©2020
Year of Publication:2020
Language:English
Series:De Gruyter Series in Nonlinear Analysis and Applications , 34
Online Access:
Physical Description:1 online resource (XII, 288 p.)
Tags: Add Tag
No Tags, Be the first to tag this record!
id 9783110599831
ctrlnum (DE-B1597)494597
(OCoLC)1153466443
collection bib_alma
record_format marc
spelling Dłotko, Tomasz W., author. aut http://id.loc.gov/vocabulary/relators/aut
Critical Parabolic-Type Problems / Tomasz W. Dłotko, Yejuan Wang.
Berlin ; Boston : De Gruyter, [2020]
©2020
1 online resource (XII, 288 p.)
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
text file PDF rda
De Gruyter Series in Nonlinear Analysis and Applications , 0941-813X ; 34
Frontmatter -- Acknowledgment -- Contents -- 1 Introduction -- 2 Preliminary concepts -- 3 Solvability of the abstract Cauchy problem -- 4 Global in time continuation of solutions -- 5 Definitions, properties, estimates, and inequalities -- 6 Navier–Stokes equation in 2D and 3D -- 7 N-D Navier–Stokes equation, an extended discussion -- 8 Cauchy’s problem for 2-D quasi-geostrophic equation -- 9 Dirichlet’s problem for critical 2D quasi-geostrophic equation -- 10 Dirichlet’s problem for critical Hamilton–Jacobi fractional equation -- 11 Fractional reaction-diffusion equation -- Bibliography -- Index -- Erratum to: Chapter 5 Definitions, properties, estimates, and inequalities -- Erratum to: Chapter 9 Dirichlet’s problem for critical 2D quasi-geostrophic equation -- Erratum to: Chapter 10 Dirichlet’s problem for critical Hamilton-Jacobi fractional equation
restricted access http://purl.org/coar/access_right/c_16ec online access with authorization star
This self-contained book covers the theory of semilinear equations with sectorial operator going back to the studies of Yosida, Henry, and Pazy, which are deeply extended nowadays. The treatment emphasizes existence-uniqueness theory as a topic of functional analysis and examines abstract evolutionary equations, with applications to the Navier-Stokes system, the quasi-geostrophic equation, and fractional reaction-diffusion equations.
Issued also in print.
Mode of access: Internet via World Wide Web.
In English.
Description based on online resource; title from PDF title page (publisher's Web site, viewed 28. Feb 2023)
Navier-Stokes-Gleichung.
Nichtlineare parabolische Differentialgleichung.
Parabolische Differentialgleichung.
Partielle Differentialgleichung.
Reaktions-Diffusionsgleichung.
MATHEMATICS / Differential Equations / Partial. bisacsh
Dłotko, Tomasz W., contributor. ctb https://id.loc.gov/vocabulary/relators/ctb
Wang, Yejuan, author. aut http://id.loc.gov/vocabulary/relators/aut
Wang, Yejuan, contributor. ctb https://id.loc.gov/vocabulary/relators/ctb
Title is part of eBook package: De Gruyter DG Ebook Package English 2020 9783110696288
Title is part of eBook package: De Gruyter DG Plus DeG Package 2020 Part 1 9783110696271
Title is part of eBook package: De Gruyter De Gruyter English eBooks 2020 - UC 9783110659061
Title is part of eBook package: De Gruyter EBOOK PACKAGE COMPLETE 2020 English 9783110704716
Title is part of eBook package: De Gruyter EBOOK PACKAGE COMPLETE 2020 9783110704518 ZDB-23-DGG
Title is part of eBook package: De Gruyter EBOOK PACKAGE Mathematics 2020 English 9783110704846
Title is part of eBook package: De Gruyter EBOOK PACKAGE Mathematics 2020 9783110704662 ZDB-23-DMA
EPUB 9783110598681
print 9783110597554
https://doi.org/10.1515/9783110599831
https://www.degruyter.com/isbn/9783110599831
Cover https://www.degruyter.com/document/cover/isbn/9783110599831/original
language English
format eBook
author Dłotko, Tomasz W.,
Dłotko, Tomasz W.,
Wang, Yejuan,
spellingShingle Dłotko, Tomasz W.,
Dłotko, Tomasz W.,
Wang, Yejuan,
Critical Parabolic-Type Problems /
De Gruyter Series in Nonlinear Analysis and Applications ,
Frontmatter --
Acknowledgment --
Contents --
1 Introduction --
2 Preliminary concepts --
3 Solvability of the abstract Cauchy problem --
4 Global in time continuation of solutions --
5 Definitions, properties, estimates, and inequalities --
6 Navier–Stokes equation in 2D and 3D --
7 N-D Navier–Stokes equation, an extended discussion --
8 Cauchy’s problem for 2-D quasi-geostrophic equation --
9 Dirichlet’s problem for critical 2D quasi-geostrophic equation --
10 Dirichlet’s problem for critical Hamilton–Jacobi fractional equation --
11 Fractional reaction-diffusion equation --
Bibliography --
Index --
Erratum to: Chapter 5 Definitions, properties, estimates, and inequalities --
Erratum to: Chapter 9 Dirichlet’s problem for critical 2D quasi-geostrophic equation --
Erratum to: Chapter 10 Dirichlet’s problem for critical Hamilton-Jacobi fractional equation
author_facet Dłotko, Tomasz W.,
Dłotko, Tomasz W.,
Wang, Yejuan,
Dłotko, Tomasz W.,
Dłotko, Tomasz W.,
Wang, Yejuan,
Wang, Yejuan,
Wang, Yejuan,
Wang, Yejuan,
author_variant t w d tw twd
t w d tw twd
y w yw
author_role VerfasserIn
VerfasserIn
VerfasserIn
author2 Dłotko, Tomasz W.,
Dłotko, Tomasz W.,
Wang, Yejuan,
Wang, Yejuan,
Wang, Yejuan,
Wang, Yejuan,
author2_variant t w d tw twd
t w d tw twd
y w yw
y w yw
y w yw
author2_role MitwirkendeR
MitwirkendeR
VerfasserIn
VerfasserIn
MitwirkendeR
MitwirkendeR
author_sort Dłotko, Tomasz W.,
title Critical Parabolic-Type Problems /
title_full Critical Parabolic-Type Problems / Tomasz W. Dłotko, Yejuan Wang.
title_fullStr Critical Parabolic-Type Problems / Tomasz W. Dłotko, Yejuan Wang.
title_full_unstemmed Critical Parabolic-Type Problems / Tomasz W. Dłotko, Yejuan Wang.
title_auth Critical Parabolic-Type Problems /
title_alt Frontmatter --
Acknowledgment --
Contents --
1 Introduction --
2 Preliminary concepts --
3 Solvability of the abstract Cauchy problem --
4 Global in time continuation of solutions --
5 Definitions, properties, estimates, and inequalities --
6 Navier–Stokes equation in 2D and 3D --
7 N-D Navier–Stokes equation, an extended discussion --
8 Cauchy’s problem for 2-D quasi-geostrophic equation --
9 Dirichlet’s problem for critical 2D quasi-geostrophic equation --
10 Dirichlet’s problem for critical Hamilton–Jacobi fractional equation --
11 Fractional reaction-diffusion equation --
Bibliography --
Index --
Erratum to: Chapter 5 Definitions, properties, estimates, and inequalities --
Erratum to: Chapter 9 Dirichlet’s problem for critical 2D quasi-geostrophic equation --
Erratum to: Chapter 10 Dirichlet’s problem for critical Hamilton-Jacobi fractional equation
title_new Critical Parabolic-Type Problems /
title_sort critical parabolic-type problems /
series De Gruyter Series in Nonlinear Analysis and Applications ,
series2 De Gruyter Series in Nonlinear Analysis and Applications ,
publisher De Gruyter,
publishDate 2020
physical 1 online resource (XII, 288 p.)
Issued also in print.
contents Frontmatter --
Acknowledgment --
Contents --
1 Introduction --
2 Preliminary concepts --
3 Solvability of the abstract Cauchy problem --
4 Global in time continuation of solutions --
5 Definitions, properties, estimates, and inequalities --
6 Navier–Stokes equation in 2D and 3D --
7 N-D Navier–Stokes equation, an extended discussion --
8 Cauchy’s problem for 2-D quasi-geostrophic equation --
9 Dirichlet’s problem for critical 2D quasi-geostrophic equation --
10 Dirichlet’s problem for critical Hamilton–Jacobi fractional equation --
11 Fractional reaction-diffusion equation --
Bibliography --
Index --
Erratum to: Chapter 5 Definitions, properties, estimates, and inequalities --
Erratum to: Chapter 9 Dirichlet’s problem for critical 2D quasi-geostrophic equation --
Erratum to: Chapter 10 Dirichlet’s problem for critical Hamilton-Jacobi fractional equation
isbn 9783110599831
9783110696288
9783110696271
9783110659061
9783110704716
9783110704518
9783110704846
9783110704662
9783110598681
9783110597554
issn 0941-813X ;
url https://doi.org/10.1515/9783110599831
https://www.degruyter.com/isbn/9783110599831
https://www.degruyter.com/document/cover/isbn/9783110599831/original
illustrated Not Illustrated
dewey-hundreds 500 - Science
dewey-tens 510 - Mathematics
dewey-ones 515 - Analysis
dewey-full 515.353
dewey-sort 3515.353
dewey-raw 515.353
dewey-search 515.353
doi_str_mv 10.1515/9783110599831
oclc_num 1153466443
work_keys_str_mv AT dłotkotomaszw criticalparabolictypeproblems
AT wangyejuan criticalparabolictypeproblems
status_str n
ids_txt_mv (DE-B1597)494597
(OCoLC)1153466443
carrierType_str_mv cr
hierarchy_parent_title Title is part of eBook package: De Gruyter DG Ebook Package English 2020
Title is part of eBook package: De Gruyter DG Plus DeG Package 2020 Part 1
Title is part of eBook package: De Gruyter De Gruyter English eBooks 2020 - UC
Title is part of eBook package: De Gruyter EBOOK PACKAGE COMPLETE 2020 English
Title is part of eBook package: De Gruyter EBOOK PACKAGE COMPLETE 2020
Title is part of eBook package: De Gruyter EBOOK PACKAGE Mathematics 2020 English
Title is part of eBook package: De Gruyter EBOOK PACKAGE Mathematics 2020
is_hierarchy_title Critical Parabolic-Type Problems /
container_title Title is part of eBook package: De Gruyter DG Ebook Package English 2020
author2_original_writing_str_mv noLinkedField
noLinkedField
noLinkedField
noLinkedField
noLinkedField
noLinkedField
_version_ 1806144477220306944
fullrecord <?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>05403nam a22009255i 4500</leader><controlfield tag="001">9783110599831</controlfield><controlfield tag="003">DE-B1597</controlfield><controlfield tag="005">20230228123812.0</controlfield><controlfield tag="006">m|||||o||d||||||||</controlfield><controlfield tag="007">cr || ||||||||</controlfield><controlfield tag="008">230228t20202020gw fo d z eng d</controlfield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9783110599831</subfield></datafield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1515/9783110599831</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-B1597)494597</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)1153466443</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-B1597</subfield><subfield code="b">eng</subfield><subfield code="c">DE-B1597</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1="0" ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="044" ind1=" " ind2=" "><subfield code="a">gw</subfield><subfield code="c">DE</subfield></datafield><datafield tag="072" ind1=" " ind2="7"><subfield code="a">MAT007020</subfield><subfield code="2">bisacsh</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="8">5u</subfield><subfield code="8">6p</subfield><subfield code="a">515.353</subfield><subfield code="q">DE-101</subfield><subfield code="2">23/ger</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">SK 540</subfield><subfield code="q">SEPA</subfield><subfield code="2">rvk</subfield><subfield code="0">(DE-625)rvk/143245:</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Dłotko, Tomasz W., </subfield><subfield code="e">author.</subfield><subfield code="4">aut</subfield><subfield code="4">http://id.loc.gov/vocabulary/relators/aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Critical Parabolic-Type Problems /</subfield><subfield code="c">Tomasz W. Dłotko, Yejuan Wang.</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Berlin ;</subfield><subfield code="a">Boston : </subfield><subfield code="b">De Gruyter, </subfield><subfield code="c">[2020]</subfield></datafield><datafield tag="264" ind1=" " ind2="4"><subfield code="c">©2020</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">1 online resource (XII, 288 p.)</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">computer</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">online resource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="347" ind1=" " ind2=" "><subfield code="a">text file</subfield><subfield code="b">PDF</subfield><subfield code="2">rda</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">De Gruyter Series in Nonlinear Analysis and Applications ,</subfield><subfield code="x">0941-813X ;</subfield><subfield code="v">34</subfield></datafield><datafield tag="505" ind1="0" ind2="0"><subfield code="t">Frontmatter -- </subfield><subfield code="t">Acknowledgment -- </subfield><subfield code="t">Contents -- </subfield><subfield code="t">1 Introduction -- </subfield><subfield code="t">2 Preliminary concepts -- </subfield><subfield code="t">3 Solvability of the abstract Cauchy problem -- </subfield><subfield code="t">4 Global in time continuation of solutions -- </subfield><subfield code="t">5 Definitions, properties, estimates, and inequalities -- </subfield><subfield code="t">6 Navier–Stokes equation in 2D and 3D -- </subfield><subfield code="t">7 N-D Navier–Stokes equation, an extended discussion -- </subfield><subfield code="t">8 Cauchy’s problem for 2-D quasi-geostrophic equation -- </subfield><subfield code="t">9 Dirichlet’s problem for critical 2D quasi-geostrophic equation -- </subfield><subfield code="t">10 Dirichlet’s problem for critical Hamilton–Jacobi fractional equation -- </subfield><subfield code="t">11 Fractional reaction-diffusion equation -- </subfield><subfield code="t">Bibliography -- </subfield><subfield code="t">Index -- </subfield><subfield code="t">Erratum to: Chapter 5 Definitions, properties, estimates, and inequalities -- </subfield><subfield code="t">Erratum to: Chapter 9 Dirichlet’s problem for critical 2D quasi-geostrophic equation -- </subfield><subfield code="t">Erratum to: Chapter 10 Dirichlet’s problem for critical Hamilton-Jacobi fractional equation</subfield></datafield><datafield tag="506" ind1="0" ind2=" "><subfield code="a">restricted access</subfield><subfield code="u">http://purl.org/coar/access_right/c_16ec</subfield><subfield code="f">online access with authorization</subfield><subfield code="2">star</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">This self-contained book covers the theory of semilinear equations with sectorial operator going back to the studies of Yosida, Henry, and Pazy, which are deeply extended nowadays. The treatment emphasizes existence-uniqueness theory as a topic of functional analysis and examines abstract evolutionary equations, with applications to the Navier-Stokes system, the quasi-geostrophic equation, and fractional reaction-diffusion equations.</subfield></datafield><datafield tag="530" ind1=" " ind2=" "><subfield code="a">Issued also in print.</subfield></datafield><datafield tag="538" ind1=" " ind2=" "><subfield code="a">Mode of access: Internet via World Wide Web.</subfield></datafield><datafield tag="546" ind1=" " ind2=" "><subfield code="a">In English.</subfield></datafield><datafield tag="588" ind1="0" ind2=" "><subfield code="a">Description based on online resource; title from PDF title page (publisher's Web site, viewed 28. Feb 2023)</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Navier-Stokes-Gleichung.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nichtlineare parabolische Differentialgleichung.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Parabolische Differentialgleichung.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Partielle Differentialgleichung.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Reaktions-Diffusionsgleichung.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">MATHEMATICS / Differential Equations / Partial.</subfield><subfield code="2">bisacsh</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dłotko, Tomasz W., </subfield><subfield code="e">contributor.</subfield><subfield code="4">ctb</subfield><subfield code="4">https://id.loc.gov/vocabulary/relators/ctb</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wang, Yejuan, </subfield><subfield code="e">author.</subfield><subfield code="4">aut</subfield><subfield code="4">http://id.loc.gov/vocabulary/relators/aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wang, Yejuan, </subfield><subfield code="e">contributor.</subfield><subfield code="4">ctb</subfield><subfield code="4">https://id.loc.gov/vocabulary/relators/ctb</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Title is part of eBook package:</subfield><subfield code="d">De Gruyter</subfield><subfield code="t">DG Ebook Package English 2020</subfield><subfield code="z">9783110696288</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Title is part of eBook package:</subfield><subfield code="d">De Gruyter</subfield><subfield code="t">DG Plus DeG Package 2020 Part 1</subfield><subfield code="z">9783110696271</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Title is part of eBook package:</subfield><subfield code="d">De Gruyter</subfield><subfield code="t">De Gruyter English eBooks 2020 - UC</subfield><subfield code="z">9783110659061</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Title is part of eBook package:</subfield><subfield code="d">De Gruyter</subfield><subfield code="t">EBOOK PACKAGE COMPLETE 2020 English</subfield><subfield code="z">9783110704716</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Title is part of eBook package:</subfield><subfield code="d">De Gruyter</subfield><subfield code="t">EBOOK PACKAGE COMPLETE 2020</subfield><subfield code="z">9783110704518</subfield><subfield code="o">ZDB-23-DGG</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Title is part of eBook package:</subfield><subfield code="d">De Gruyter</subfield><subfield code="t">EBOOK PACKAGE Mathematics 2020 English</subfield><subfield code="z">9783110704846</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Title is part of eBook package:</subfield><subfield code="d">De Gruyter</subfield><subfield code="t">EBOOK PACKAGE Mathematics 2020</subfield><subfield code="z">9783110704662</subfield><subfield code="o">ZDB-23-DMA</subfield></datafield><datafield tag="776" ind1="0" ind2=" "><subfield code="c">EPUB</subfield><subfield code="z">9783110598681</subfield></datafield><datafield tag="776" ind1="0" ind2=" "><subfield code="c">print</subfield><subfield code="z">9783110597554</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1515/9783110599831</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://www.degruyter.com/isbn/9783110599831</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="3">Cover</subfield><subfield code="u">https://www.degruyter.com/document/cover/isbn/9783110599831/original</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">978-3-11-065906-1 De Gruyter English eBooks 2020 - UC</subfield><subfield code="b">2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">978-3-11-069627-1 DG Plus DeG Package 2020 Part 1</subfield><subfield code="b">2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">978-3-11-069628-8 DG Ebook Package English 2020</subfield><subfield code="b">2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">978-3-11-070471-6 EBOOK PACKAGE COMPLETE 2020 English</subfield><subfield code="b">2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">978-3-11-070484-6 EBOOK PACKAGE Mathematics 2020 English</subfield><subfield code="b">2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">EBA_BACKALL</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">EBA_CL_MTPY</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">EBA_DGALL</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">EBA_EBACKALL</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">EBA_EBKALL</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">EBA_ECL_MTPY</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">EBA_EEBKALL</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">EBA_ESTMALL</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">EBA_STMALL</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV-deGruyter-alles</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">PDA12STME</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">PDA13ENGE</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">PDA18STMEE</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">PDA5EBK</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-23-DGG</subfield><subfield code="b">2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-23-DMA</subfield><subfield code="b">2020</subfield></datafield></record></collection>