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@article{AM2_1990__39_2-3_137343, author = {A. Smajdor}, title = {Additive selections of superadditive set-valued functions.}, journal = {Aequationes mathematicae}, pages = {121--128}, publisher = {mathdoc}, volume = {39}, number = {2-3}, year = {1990}, zbl = {0706.39006}, url = {http://geodesic.mathdoc.fr/item/AM2_1990__39_2-3_137343/} }
A. Smajdor. Additive selections of superadditive set-valued functions.. Aequationes mathematicae, Tome 39 (1990) no. 2-3, pp. 121-128. http://geodesic.mathdoc.fr/item/AM2_1990__39_2-3_137343/