981
Published: 1935-1935
982
Published: 1947-2013
983
Published: 1997-
984
Published: 1989-2002
985
Published: 1926-;, -1928;, 1926-1942;, 1994-2000;, teils
986
Published: teils
987
Published: 1976-2005
988
Published: 1976-
989
Published: 1973-2005
990
Published: 1966-
991
Published: 1977-
992
Published: 1975-
993
Published: 1989-1994
994
Published: 2008-2012
995
Published: ©, 2012
Superior document: Klingende Forschung 3
996
Published: 2008-2008
997
Published: 1976-1976
998
Published: 1957
999
Published: 1993-1994
1000
Published: 1990-2014