Forecast revenue from sales in the field of physical culture and recreation activities Zilbershteyn O.B., Kotov V.V., Shklyar T.L. Forecast revenue from sales in the field of physical culture and recreation activities // Russian Journal of Entrepreneurship. — 2019. — Vol. 20. — № 4. — p. 955-974. — doi: 10.18334/rp.20.4.40576 Read more ›