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  • × classification_ss:"42.00 Biologie: Allgemeines"
  • × year_i:[1960 TO 1970}
  1. Bertalanffy, L. von: General system theory : foundations, development, applications (1969) 0.01 
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    BK
    42.00 Biologie: Allgemeines
    Classification
    42.00 Biologie: Allgemeines