@article{GDZPPN002056518, title = {More isoperimetric inequalities proved and conjectured.}, journal = {Commentarii mathematici Helvetici}, volume = {29}, year = {1955}, pages = {112-119}, zbl = {0068.36603}, url = {http://dml.mathdoc.fr/item/GDZPPN002056518} }
Pólya, G. More isoperimetric inequalities proved and conjectured.. Commentarii mathematici Helvetici, Tome 29 (1955) pp. 112-119. http://gdmltest.u-ga.fr/item/GDZPPN002056518/