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@article{MS2_1956__4_165610, author = {H. BUSEMANN and C.M. PETTY}, title = {Problems on convex bodies}, journal = {Mathematica Scandinavica}, pages = {88--94}, publisher = {mathdoc}, volume = {4}, year = {1956}, zbl = {0070.39301}, url = {http://geodesic.mathdoc.fr/item/MS2_1956__4_165610/} }
H. BUSEMANN; C.M. PETTY. Problems on convex bodies. Mathematica Scandinavica, Tome 4 (1956), pp. 88-94. http://geodesic.mathdoc.fr/item/MS2_1956__4_165610/