@article{GDZPPN002346249, title = {Pythagorean Inequalities for Convex Bodies}, journal = {Mathematica Scandinavica}, volume = {8}, year = {1960}, pages = {168-170}, zbl = {0104.17003}, url = {http://dml.mathdoc.fr/item/GDZPPN002346249} }
Firey, Wm.J. Pythagorean Inequalities for Convex Bodies. Mathematica Scandinavica, Tome 8 (1960) pp. 168-170. http://gdmltest.u-ga.fr/item/GDZPPN002346249/