00543naa#a2200181#i#450# EN\RIOR\bibl\34434 20241117072003.7 2409-6024 20200128b2020####ek#y0engy0150####ca RUS RU Economic eco-clusters as centers for the development of organic agriculture Journal article Moscow Publishing Center RIOR 2020 4 с. Journal article local Kundius Valentina Aleksandrovna Voronkova Ol'ga Yur'evna rusjm.ru