00521naa#a2200181#i#450# EN\\bibl\532 20250110190715.5 1999-9836 20131023b2013####ek#y0engy0150####ca RUS RU The main forms of modern volunteer movement in the Altai Republic Journal article Moscow All-Russian center of living standards 2013 4 с. Journal article local Tyurkina Nelya Popova Evgeniya naukaru.ru