МосквинаА. Ю., and ДолжиковаД. В. “The Participation of Elderly People in Social Entrepreneurship: The Practice of the Social Accelerator of a Resource Centre for NGOs (St. Petersburg)”. The Journal of Social Policy Studies, Vol. 16, no. 1, Mar. 2018, pp. 169-76, doi:10.17323/727-0634-2018-16-1-169-176.