AGRATINI, O. (2019). Book reviews: “Vijay Gupta, Michael Th. Rassias,” Moments of Linear Positive Operators and Approximation, Springer, 2019, viii + 96 p., ISBN 978-3-030-19454-3; 978-3-030-19455-0 (ebook). Studia Universitatis Babeș-Bolyai Mathematica, 64(4), 601. Retrieved from https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/2384