Leonchik, E. Yu. “On an Estimate for the Rearrangement of a Function from the Muckenhoupt Class $A_1$”. Ukrains’kyi Matematychnyi Zhurnal 62, no. 8 (August 25, 2010): 1145–1148. Accessed April 11, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/2944.