Ukhanova Yu.V., Kosygina K.E., Leonidova E.E. Trends and barriers of the development of volunteerism in Vologda. Social area, 2020, vol. 6, no. 1. URL: http://socialarea-journal.ru/article/28499?_lang=en DOI: 10.15838/sa.2020.1.23.2
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