00539naa#a2200193#i#450# EN\\bibl\11694 20241001155948.2 2071-2367 20160429b2016####ek#y0engy0150####ca RUS RU Methodological approaches to assessing food security in the country Journal article Moscow RANEPA 2016 4 с. Journal article local Elfimov Andrey Anichin Vladislav Zhelyabovskiy Aleksandr zh-szf.ru