@article{RM_1997_52_4_a15,
     author = {A. O. Prishlyak},
     title = {On graphs embedded in a~surface},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {844--845},
     publisher = {mathdoc},
     volume = {52},
     number = {4},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1997_52_4_a15/}
}