@article{03600373, title = {Existence theorems for the matrix Riccati equation }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {1}, year = {1978}, pages = {13-20}, doi = {10.1155/S0161171278000022}, zbl = {0386.34005}, language = {en}, url = {http://dml.mathdoc.fr/item/03600373} }
Jones, Robert A. Existence theorems for the matrix Riccati equation . International Journal of Mathematics and Mathematical Sciences, Tome 1 (1978) pp. 13-20. doi : 10.1155/S0161171278000022. http://gdmltest.u-ga.fr/item/03600373/