1941
1942
Free to read (incl. Open Access)
1943
Published: 2007
1944
Published: 2008;, 2008.
1945
1946
1947
Published: 1931
Superior document: Bell telephone system B-626
1948
1949
1950
1951
Published: 1956
Superior document: Archiv für vaterländische Geschichte und Topographie 48
1952
1953
1954
Published: 1966
Superior document: Bulario de la Universidad de Salamanca (1219 - 1549) 1
1955
1956
1957
1958
1959
Published: 2019
Superior document: Classica Digitalia: Ideia
1960
Published: 2017;, 2017.