@article{DA_1978_17_a7,
     author = {A. I. Serdyukov},
     title = {Some extremal bypasses in graphs},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {76--79},
     year = {1978},
     number = {17},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1978_17_a7/}
}