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@article{MZM_1989_46_4_a9, author = {V. E. Tarakanov}, title = {Covering numbers of regular multigraphs}, journal = {Matemati\v{c}eskie zametki}, pages = {66--75}, publisher = {mathdoc}, volume = {46}, number = {4}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1989_46_4_a9/} }
V. E. Tarakanov. Covering numbers of regular multigraphs. Matematičeskie zametki, Tome 46 (1989) no. 4, pp. 66-75. http://geodesic.mathdoc.fr/item/MZM_1989_46_4_a9/