@article{05237029, title = {Oscillatority conditions for nonlinear systems with delay.}, journal = {Journal of Applied Mathematics}, volume = {2007}, year = {2007}, doi = {10.1155/2007/72561}, zbl = {1151.34054}, language = {en}, url = {http://dml.mathdoc.fr/item/05237029} }
Efimov, Denis V.; Fradkov, Alexander L. Oscillatority conditions for nonlinear systems with delay.. Journal of Applied Mathematics, Tome 2007 (2007) . doi : 10.1155/2007/72561. http://gdmltest.u-ga.fr/item/05237029/