Chandra Kishore Mohapatra, Namita Das. “Composition Operators on the Bergman Space over the Upper Half Plane”. Journal of International Academy of Physical Sciences 12, no. 1-4 (December 15, 2008): 13–23. Accessed May 13, 2025. https://www.iaps.org.in/journal/index.php/journaliaps/article/view/838.