TY JOUR TI Optimization of the management of socially oriented non-profit organizations as a condition for the development of the social sphere KW socially oriented non-profit organizations KW social sphere KW management KW volunteering KW fundraising KW charity JO Theoretical economics AU Dmitriev, A.S. AU Orlov, A.A. PY 2024 IS 0 PB Yaroslavl State Technical University