00518naa#a2200169#i#450# EN\\bibl\101861 20250905230132.5 2588-0209 20201225b2020####ek#y0engy0150####ca RU THE ROLE OF SUPPLY AND MARKETING COOPERATIVES IN INCREASING THE SHARE OF FARMS IN THE VALUE-ADDED STRUCTURE OF FOOD CHAINS Journal article Moscow Electronic science 2020 0 с. Journal article local stolypinvestnik.ru