@article{DAN_1961_140_2_a0,
     author = {I. E. Bazilevich and G. V. Koritskii},
     title = {Certain properties of level curves under univalent conformal mappings},
     journal = {Doklady Akademii Nauk},
     pages = {279--280},
     publisher = {mathdoc},
     volume = {140},
     number = {2},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_140_2_a0/}
}