@article{ZNSL_2017_456_a14,
     author = {N. A. Shirokov},
     title = {Smoothness of a~holomorphic function and its modulus on the boundary of a~polydisk},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {172--176},
     publisher = {mathdoc},
     volume = {456},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2017_456_a14/}
}