Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1985_38_6_a6, author = {V. K. Maslyuchenko and M. M. Popov}, title = {An invariant of partially ordered sets}, journal = {Matemati\v{c}eskie zametki}, pages = {866--871}, publisher = {mathdoc}, volume = {38}, number = {6}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1985_38_6_a6/} }
V. K. Maslyuchenko; M. M. Popov. An invariant of partially ordered sets. Matematičeskie zametki, Tome 38 (1985) no. 6, pp. 866-871. http://geodesic.mathdoc.fr/item/MZM_1985_38_6_a6/