COTÎRLĂ, Luminița-Ioana, and Adriana CĂTAȘ. “Differential Sandwich Theorem for Certain Class of Analytic Functions Associated With an Integral Operator”. Studia Universitatis Babeș-Bolyai Mathematica, vol. 65, no. 4, Nov. 2020, pp. 487–494, doi:10.24193/subbmath.2020.4.01.