@article{GDZPPN002056283, title = {Ein Minimum-Maximumproblem \"uber konvexe Rotationsk\"orper.}, journal = {Commentarii mathematici Helvetici}, volume = {28}, year = {1954}, pages = {149-154}, zbl = {0058.38502}, url = {http://dml.mathdoc.fr/item/GDZPPN002056283} }
Bieri, H. Ein Minimum-Maximumproblem über konvexe Rotationskörper.. Commentarii mathematici Helvetici, Tome 28 (1954) pp. 149-154. http://gdmltest.u-ga.fr/item/GDZPPN002056283/