Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1991_50_2_a21, author = {Yu. V. Pokornyi and I. G. Karelina}, title = {Nonlinear comparison theorems on graphs}, journal = {Matemati\v{c}eskie zametki}, pages = {155--157}, publisher = {mathdoc}, volume = {50}, number = {2}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1991_50_2_a21/} }
Yu. V. Pokornyi; I. G. Karelina. Nonlinear comparison theorems on graphs. Matematičeskie zametki, Tome 50 (1991) no. 2, pp. 155-157. http://geodesic.mathdoc.fr/item/MZM_1991_50_2_a21/