00521naa#a2200181#i#450# EN\\bibl\5937 20251220103458.6 2073-0462 20150325b2015####ek#y0engy0150####ca RUS RU CLASSIFICATION OF OPTICAL PHOTOSEPARATORS FOR SUNFLOWER SEED SORTING Journal article Kazan Kazan state agrarian University 2015 2 с. Journal article local Priporov Igor Shaforostov Vasiliy zh-szf.ru