@article{1183498020, author = {Williamson, John}, title = {A polar representation of singular matrices}, journal = {Bull. Amer. Math. Soc.}, volume = {41}, number = {12}, year = {1935}, pages = { 118-123}, language = {en}, url = {http://dml.mathdoc.fr/item/1183498020} }
Williamson, John. A polar representation of singular matrices. Bull. Amer. Math. Soc., Tome 41 (1935) no. 12, pp. 118-123. http://gdmltest.u-ga.fr/item/1183498020/