Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1983_273_6_a7, author = {V. P. Soltan and V. D. Chepoi}, title = {Some classes of d-convex functions in a graph}, journal = {Doklady Akademii Nauk}, pages = {1314--1317}, publisher = {mathdoc}, volume = {273}, number = {6}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1983_273_6_a7/} }
V. P. Soltan; V. D. Chepoi. Some classes of d-convex functions in a graph. Doklady Akademii Nauk, Tome 273 (1983) no. 6, pp. 1314-1317. http://geodesic.mathdoc.fr/item/DAN_1983_273_6_a7/