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@article{DAN_1961_139_4_a3, author = {A. A. Zykov}, title = {Edge vertex functions and the distributive properties of graphs}, journal = {Doklady Akademii Nauk}, pages = {787--790}, publisher = {mathdoc}, volume = {139}, number = {4}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a3/} }
A. A. Zykov. Edge vertex functions and the distributive properties of graphs. Doklady Akademii Nauk, Tome 139 (1961) no. 4, pp. 787-790. http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a3/