Tonoyan, Y. (2015) β€œON INTEGRAL OPERATORS OF BERGMAN TYPE ON THE UNIT BALL OF ${\mathbb R}^n$”, Proceedings of the YSU A: Physical and Mathematical Sciences. Yerevan, Armenia, 49(3 (238), pp. 23–30. doi: 10.46991/PSYU:A/2015.49.3.023.