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@article{MASLO_1988__38_1_a7, author = {Ger, Roman}, title = {Almost approximately convex functions}, journal = {Mathematica slovaca}, pages = {61--78}, publisher = {mathdoc}, volume = {38}, number = {1}, year = {1988}, mrnumber = {945081}, zbl = {0641.39006}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1988__38_1_a7/} }
Ger, Roman. Almost approximately convex functions. Mathematica slovaca, Tome 38 (1988) no. 1, pp. 61-78. http://geodesic.mathdoc.fr/item/MASLO_1988__38_1_a7/