00592naa#a2200193#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200012300102210004900225215001000274608002700284700002600311700002400337700002200361856001500383EN\\bibl\1056420241202191050.1##a2073-0462##a20151225b2015####ek#y0engy0150####ca0#aRUS##aRU1#a OPTIMIZATION OF SOWN AREA STRUCTURE OF CROPS BY ECONOMIC AND MATHEMATICAL MODELING: PRACTICAL ASPECTeJournal article1#aKazancKazan state agrarian Universityd2015##a3 с.##aJournal article2local#1aNuretdinovagYuliya  #1aNuretdinovgIldar  #1aKhasyanovgOleg  4#anaukaru.ru