@article{RM_2010_65_6_a5,
     author = {N. G. Kruzhilin},
     title = {A generalization of {Kerner's} theorem on proper maps},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1181--1182},
     publisher = {mathdoc},
     volume = {65},
     number = {6},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2010_65_6_a5/}
}