@article{DAN_1977_233_4_a13,
     author = {A. R. Tsitskishvili},
     title = {On conformal mapping of a half-plane onto circular quadrangles},
     journal = {Doklady Akademii Nauk},
     pages = {563--566},
     year = {1977},
     volume = {233},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_233_4_a13/}
}