Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1991_49_4_a7, author = {M. D. Kovalev}, title = {Convex sets and hypergraphs}, journal = {Matemati\v{c}eskie zametki}, pages = {69--73}, publisher = {mathdoc}, volume = {49}, number = {4}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1991_49_4_a7/} }
M. D. Kovalev. Convex sets and hypergraphs. Matematičeskie zametki, Tome 49 (1991) no. 4, pp. 69-73. http://geodesic.mathdoc.fr/item/MZM_1991_49_4_a7/