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  • × author_ss:"Hilgenberg, O.C."
  • × year_i:[1950 TO 1960}
  1. Hilgenberg, O.C.: ¬Der flächenhafte Realkatalog mit Dezimalklassifikation und Schlagwortregister (1953) 0.00 
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  2. Hilgenberg, O.C.: Zur Entstehung der Dezimalklassifikation (1952) 0.00 
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