@article{1028997953, author = {Al-Dhahir, M. W.}, title = {A simplified proof of the Pappus-Leisenring theorem.}, journal = {Michigan Math. J.}, volume = {4}, number = {2}, year = {1957}, pages = { 225-226}, language = {en}, url = {http://dml.mathdoc.fr/item/1028997953} }
Al-Dhahir, M. W. A simplified proof of the Pappus-Leisenring theorem.. Michigan Math. J., Tome 4 (1957) no. 2, pp. 225-226. http://gdmltest.u-ga.fr/item/1028997953/