P. Gurusamy, M. Çağlar, S. Sivasubramanian, and L. I. Cotirla, “The Fekete–Szegö functional associated with $m$-th root transformation using conical domains”, Ukr. Mat. Zhurn., vol. 76, no. 7, pp. 951–964, Aug. 2024, doi: 10.3842/umzh.v76i7.7539.