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@article{PIM_1995_N_S_58_72_a11, author = {A.A. Balkema and J.L. Geluk and L. de Haan}, title = {Measuring asymptotic convexity}, journal = {Publications de l'Institut Math\'ematique}, pages = {106 }, publisher = {mathdoc}, volume = {_N_S_58}, number = {72}, year = {1995}, zbl = {0901.26003}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PIM_1995_N_S_58_72_a11/} }
A.A. Balkema; J.L. Geluk; L. de Haan. Measuring asymptotic convexity. Publications de l'Institut Mathématique, _N_S_58 (1995) no. 72, p. 106 . http://geodesic.mathdoc.fr/item/PIM_1995_N_S_58_72_a11/