?url_ver=Z39.88-2004&rft_id=10.1007%2F978-3-0348-5793-2_8&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Zimin%2C+I.&rft.aulast=Zimin&rft.aufirst=I.&rft.date=January+1976&rft.isbn=978-3-0348-5793-2&rft.title=Mathematical+Modelling+in+Normative+Development+Planning&rft.btitle=Overlapping+Tendencies+in+Operations+Research+Systems+Theory+and+Cybernetics&rft.genre=bookitem