%0 Journal Article %A S. G. Merzlyakov %T Sharp estimates for the modulus of a~canonical product %J Sbornik. Mathematics %D 2016 %P 238-266 %V 207 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2016_207_2_a3/ %G en %F SM_2016_207_2_a3