%0 Journal Article %A V. N. Dubinin %T An upper bound for the least critical values of finite Blaschke products %J Sbornik. Mathematics %D 2022 %P 744-751 %V 213 %N 6 %U http://geodesic.mathdoc.fr/item/SM_2022_213_6_a1/ %G en %F SM_2022_213_6_a1