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  • × author_ss:"Vorstius, J."
  • × year_i:[1930 TO 1940}
  1. Vorstius, J.: Zur Theorie der primären Nationalbibliographie (1930) 0.02 
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  2. Vorstius, J.: ¬Die Katalogprobleme im Spiegel der ausländischen Fachliteratur seit 1930 (1933) 0.02 
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  3. Vorstius, J.: Kritische Gedanken über den neuesten Beitrag zur Kataloggeschichte und Kataloglehre (1934) 0.01 
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