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  • × author_ss:"Langfeldt, J."
  • × year_i:[1940 TO 1950}
  1. Langfeldt, J.: Systematik und Index des Realkatalogs der Stadtbücherei Bochum (1949) 0.02 
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    Source
    Mitteilungsblatt. VdB NW. 1949, Nr.3, S.6-7