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%T The Westeuropadaten-Archiv-Project %A Pfennig, Winfried %J Historical Social Research %N 4 %P 39-42 %V 4 %D 1979 %@ 0172-6404 %= 2012-05-29T11:39:00Z %~ GESIS %> https://nbn-resolving.org/urn:nbn:de:0168-ssoar-52433 %C DEU %G en %9 journal article %W GESIS - http://www.gesis.org %~ SSOAR - http://www.ssoar.info