Andrey V. LITVIN and Dmitry P. ARKALOV, “Metodología Para Optimizar La Financiación Presupuestaria Del Deporte En Rusia : El Aspecto Regional,” Proceedings of the 36th International Business Information Management Association (IBIMA), ISBN: 978-0-9998551-5-7, 4-5 November 2020, Granada, Spain, p 1392-1396.
Andrey V. LITVIN and Dmitry P. ARKALOV, “The Practice of Using the SROI Methodology for Assessing the Performance of Municipal Sports Schools: Russian Practice,” Proceedings of the 36th International Business Information Management Association (IBIMA), ISBN: 978-0-9998551-5-7, 4-5 November 2020, Granada, Spain, p 3607-3611.