@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/