@article{DAN_1965_163_6_a7,
     author = {O. V. Stepanova},
     title = {A property of level lines in univalent conformal mappings},
     journal = {Doklady Akademii Nauk},
     pages = {1330},
     publisher = {mathdoc},
     volume = {163},
     number = {6},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_163_6_a7/}
}