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@article{MZM_1980_28_2_a8, author = {N. P. Korovina}, title = {Systems of pairs of cyclic type}, journal = {Matemati\v{c}eskie zametki}, pages = {271--278}, publisher = {mathdoc}, volume = {28}, number = {2}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1980_28_2_a8/} }
N. P. Korovina. Systems of pairs of cyclic type. Matematičeskie zametki, Tome 28 (1980) no. 2, pp. 271-278. http://geodesic.mathdoc.fr/item/MZM_1980_28_2_a8/