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@article{AM2_1976__14_136595, author = {J. Smital}, title = {On convex functions bounded below.}, journal = {Aequationes mathematicae}, pages = {345--350}, publisher = {mathdoc}, volume = {14}, year = {1976}, zbl = {0324.26006}, url = {http://geodesic.mathdoc.fr/item/AM2_1976__14_136595/} }
J. Smital. On convex functions bounded below.. Aequationes mathematicae, Tome 14 (1976), pp. 345-350. http://geodesic.mathdoc.fr/item/AM2_1976__14_136595/