@article{DAN_1962_143_6_a6,
     author = {A. A. Zykov},
     title = {Cyclomatic and distribution properties of multigraphs},
     journal = {Doklady Akademii Nauk},
     pages = {1264--1267},
     year = {1962},
     volume = {143},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_143_6_a6/}
}