@article{DAN_1960_130_6_a6,
     author = {A. G. Sigalov},
     title = {Conditions for the compactness of a family of surfaces of finite topological type},
     journal = {Doklady Akademii Nauk},
     pages = {1203--1205},
     publisher = {mathdoc},
     volume = {130},
     number = {6},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_6_a6/}
}