CHENG, L. and ZHOU, X. 2022. Strong inequalities for the iterated Boolean sums of Bernstein operators: Dedicated to Professor Heiner Gonska on the occasion of his 70th anniversary. Studia Universitatis Babeș-Bolyai Mathematica. 64, 3 (Nov. 2022), 299–304. DOI:https://doi.org/10.24193/subbmath.2019.3.01.