@article{DAN_1974_219_6_a1,
     author = {T. M. Bandman},
     title = {The behavior of a quasi-conformal mapping near singular points of a characteristic},
     journal = {Doklady Akademii Nauk},
     pages = {1285--1288},
     publisher = {mathdoc},
     volume = {219},
     number = {6},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_219_6_a1/}
}