LDR 00592naa#a2200193#i#450# 001 EN\\bibl\10564 005 20241202191718.1 011 ## _a2073-0462 100 ## _a20151225b2015####ek#y0engy0150####ca 101 0# _aRUS 102 ## _aRU 200 1# _a OPTIMIZATION OF SOWN AREA STRUCTURE OF CROPS BY ECONOMIC AND MATHEMATICAL MODELING: PRACTICAL ASPECT _eJournal article 210 1# _aKazan _cKazan state agrarian University _d2015 215 ## _a3 с. 608 ## _aJournal article _2local 700 #1 _aNuretdinova _gYuliya 700 #1 _aNuretdinov _gIldar 700 #1 _aKhasyanov _gOleg 856 4# _anaukaru.ru _u