Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KUIPM_1988_a0, author = {Z. R. Gabidullina}, title = {Differentiability of a convex function}, journal = {Issledovaniya po Prikladnoi Matematike i Informatike}, pages = {3--5}, publisher = {mathdoc}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUIPM_1988_a0/} }
Z. R. Gabidullina. Differentiability of a convex function. Issledovaniya po Prikladnoi Matematike i Informatike, Issledovaniya po Prikladnoi Matematike (1988), pp. 3-5. http://geodesic.mathdoc.fr/item/KUIPM_1988_a0/