Páll-Szabo, Á. O. “Generalizations of Starlike Harmonic Functions Defined by Sălăgean and Ruscheweyh Derivatives”. Ukrains’kyi Matematychnyi Zhurnal 74, no. 10 (November 27, 2022): 1388–1400. Accessed December 5, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/6157.