@article{1077374939, author = {Levin, J. J. and Shatz, S. S.}, title = {Riccati algebras}, journal = {Duke Math. J.}, volume = {30}, number = {1}, year = {1963}, pages = { 579-594}, language = {en}, url = {http://dml.mathdoc.fr/item/1077374939} }
Levin, J. J.; Shatz, S. S. Riccati algebras. Duke Math. J., Tome 30 (1963) no. 1, pp. 579-594. http://gdmltest.u-ga.fr/item/1077374939/