Chandra, H., and D. Kumar. “Antinormal Composition Operators on $L^2$ -Space of an Atomic Measure Space”. Ukrains’kyi Matematychnyi Zhurnal 71, no. 1 (January 25, 2019): 92–98. Accessed April 11, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/1421.