
1
2
3
Published: Bonn : Forschungsinst. der Friedrich-Ebert-Stiftung, 1990
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4
Published: Frankfurt am Main : Frankfurter Societäts-Druckerei, 1929
Book
5
Published: Baden-Baden : Nomos-Verl.-Ges, 1982
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6
7
Published: Bonn, 1959
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8
9
Published: Bonn : Verl. Neue Gesellschaft, 1985
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10
Published: Stuttgart : Verl. Bonn Aktuell, 1978
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11
Book
12
13
Published: Gütersloh : Verl. Bertelsmann-Stiftung, 1986
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14
15
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16
17
Published: Düsseldorf, [ca. 1951]
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