@article{KYB_2002_38_5_a9,
     author = {Voicu, Mihail and Pastravanu, Octavian},
     title = {Time-domain and parametric $L^2$-properties corresponding to {Popov} inequality},
     journal = {Kybernetika},
     pages = {617--629},
     year = {2002},
     volume = {38},
     number = {5},
     mrnumber = {1966950},
     zbl = {1265.93219},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_2002_38_5_a9/}
}