1. rova, E. S. & Yanitskiy, M. S. (2008). Psychological determinants of volunteer’s activity. Tomsk State University Journal, (306), 120–125. [In Russian]
2. Barhaev, A. B. (2009). Volunteer communities as an innovative form of involving students in socially useful activities. Informacionno-bibliotechnyj centr TGU, (5), 77–93. [In Russian]
3. Biderman, K. (1999). Coordination of Volunteer Work and Management of Volunteer Programs in the UK. Russko-Nemeckij obmen. [In Russian]
4. FOM. (2020). Mutual assistance during a pandemic. Are Russians inclined to help each other? And did they help more in the pandemic? https://fom.ru/TSennosti/14393 [In Russian]
5. Volunteers of Russia: official website (n.d.). https://dobro.ru/ [In Russian]