Vasylkiv, Y.V., Kondratyuk, A.A. and Tarasyuk, S.I. 2003. On boundedness of integral means of Blaschke product logarithms. Mathematical Modelling and Analysis. 8, 3 (Sep. 2003), 259-265. DOI:https://doi.org/10.3846/13926292.2003.9637228.