@article{1103037546, author = {Gr\"unbaum, Branko}, title = {On a conjecture of H. Hadwiger.}, journal = {Pacific J. Math.}, volume = {11}, number = {4}, year = {1961}, pages = { 215-219}, language = {en}, url = {http://dml.mathdoc.fr/item/1103037546} }
Grünbaum, Branko. On a conjecture of H. Hadwiger.. Pacific J. Math., Tome 11 (1961) no. 4, pp. 215-219. http://gdmltest.u-ga.fr/item/1103037546/