@article{1103044460, author = {Rabin, Michael}, title = {A note on Helly's theorem.}, journal = {Pacific J. Math.}, volume = {5}, number = {4}, year = {1955}, pages = { 363-366}, language = {en}, url = {http://dml.mathdoc.fr/item/1103044460} }
Rabin, Michael. A note on Helly's theorem.. Pacific J. Math., Tome 5 (1955) no. 4, pp. 363-366. http://gdmltest.u-ga.fr/item/1103044460/