@article{02166707, title = {Exponentially dissipative nonlinear dynamical systems: A nonlinear extension of strict positive realness.}, journal = {Mathematical Problems in Engineering}, volume = {2003}, year = {2003}, pages = {25-45}, doi = {10.1155/S1024123X03202015}, zbl = {1075.93034}, language = {en}, url = {http://dml.mathdoc.fr/item/02166707} }
Chellaboina, Vijaysekhar; Haddad, Wassim M. Exponentially dissipative nonlinear dynamical systems: A nonlinear extension of strict positive realness.. Mathematical Problems in Engineering, Tome 2003 (2003) pp. 25-45. doi : 10.1155/S1024123X03202015. http://gdmltest.u-ga.fr/item/02166707/