%0 Journal Article %A A. N. Medvedev %T Comparison of boundary smoothness for an analytic function and for its modulus in the case of the upper half-plane %J Zapiski Nauchnykh Seminarov POMI %D 2016 %P 75-89 %V 447 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2016_447_a5/ %G ru %F ZNSL_2016_447_a5