@article{DAN_1983_269_6_a9,
     author = {N. A. Shirokov},
     title = {Properties of the moduli of analytic functions that are smooth up to the boundary},
     journal = {Doklady Akademii Nauk},
     pages = {1320--1323},
     publisher = {mathdoc},
     volume = {269},
     number = {6},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_269_6_a9/}
}