Alexander Bach PapersOtto Bauer PapersEmil Baumgärtel PapersJulius Braunthal PapersFriedrich Adler PapersVictor Adler PapersArchief Centraal Comité ter Verzorging van Oostenrijksche Arbeiderskinderen in NederlandEuropean Trade Union Confederation ArchivesFritz Flesch PapersFritz Flesch Papers from New York Public LibraryLudwig Frank PapersRobert Danneberg PapersArchief Albert Pieter Hahn Jr.Karl Heinz PapersRudolf Hilferding PapersIUSY ArchivesInternational Working Union of Socialist Parties ArchivesHans Janitschek PapersEmmerich Kálmán PapersBenno Karpeles PapersBenedikt Kautsky PapersKarl Kautsky PapersHans Kudlich PapersLeague of Nations (Geneva) CollectionOtto Leichter PapersMax Nacht PapersMax Nettlau PapersMax Nettlau Papers from the RGASPIErnst Papanek PapersFranz Pavelka PapersJosef Peukert PapersRodolphe Prager PapersPierre Ramus PapersRoman Rosdolsky PapersJacques Schärf PapersAndreas Scheu PapersGeorg Scheuer CollectionKarl Steinhardt PapersAdolf Sturmthal PapersMartha R. Tausk-Frisch Papers
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Alexander Bach PapersOtto Bauer PapersEmil Baumgärtel PapersJulius Braunthal PapersFriedrich Adler PapersVictor Adler PapersArchief Centraal Comité ter Verzorging van Oostenrijksche Arbeiderskinderen in NederlandEuropean Trade Union Confederation ArchivesFritz Flesch PapersFritz Flesch Papers from New York Public LibraryLudwig Frank PapersRobert Danneberg PapersArchief Albert Pieter Hahn Jr.Karl Heinz PapersRudolf Hilferding PapersIUSY ArchivesInternational Working Union of Socialist Parties ArchivesHans Janitschek PapersEmmerich Kálmán PapersBenno Karpeles PapersBenedikt Kautsky PapersKarl Kautsky PapersHans Kudlich PapersLeague of Nations (Geneva) CollectionOtto Leichter PapersMax Nacht PapersMax Nettlau PapersMax Nettlau Papers from the RGASPIErnst Papanek PapersFranz Pavelka PapersJosef Peukert PapersRodolphe Prager PapersPierre Ramus PapersRoman Rosdolsky PapersJacques Schärf PapersAndreas Scheu PapersGeorg Scheuer CollectionKarl Steinhardt PapersAdolf Sturmthal PapersMartha R. Tausk-Frisch Papers