@article{1183492253, author = {Kuratowski, C. and Zarankiewicz, C.}, title = {A theorem on connected point sets}, journal = {Bull. Amer. Math. Soc.}, volume = {33}, number = {6}, year = {1927}, pages = { 571-575}, language = {en}, url = {http://dml.mathdoc.fr/item/1183492253} }
Kuratowski, C.; Zarankiewicz, C. A theorem on connected point sets. Bull. Amer. Math. Soc., Tome 33 (1927) no. 6, pp. 571-575. http://gdmltest.u-ga.fr/item/1183492253/