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Electronic
Article
Presumably Free Access
Volltext (lizenzpflichtig)
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Print
Book
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Electronic
Article
Volltext (Resolving-System)
Volltext (doi)
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Electronic
Article
Volltext (Verlag)
Volltext (doi)
History 1960-1975
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Electronic
Article
Presumably Free Access
Volltext (Resolving-System)
Volltext (doi)
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Electronic
Article
Presumably Free Access
Volltext (Verlag)
Volltext (doi)
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