Bokayev, N.A., M.L. Goldman, and G.Zh. Karshygina. “Some Integral Estimates on the Cones of Functions With the Monotonicity Conditions”. Bulletin of the Karaganda University. Mathematics Series 90, no. 2 (June 30, 2018): 80–87. Accessed August 23, 2025. http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/227.