@article{05282543, title = {Generalized persistency of excitation.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2007}, year = {2007}, doi = {10.1155/2007/69093}, zbl = {1159.34003}, language = {en}, url = {http://dml.mathdoc.fr/item/05282543} }
Nikitin, Sergey. Generalized persistency of excitation.. International Journal of Mathematics and Mathematical Sciences, Tome 2007 (2007) . doi : 10.1155/2007/69093. http://gdmltest.u-ga.fr/item/05282543/