@article{DAN_1967_175_5_a9,
     author = {N. Krolevets},
     title = {Locally perfect mappings},
     journal = {Doklady Akademii Nauk},
     pages = {1008--1011},
     publisher = {mathdoc},
     volume = {175},
     number = {5},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_175_5_a9/}
}