@article{KYB_1995__31_6_a11,
     author = {Grasselli, Osvaldo Maria and Longhi, Sauro and Tornamb\`e, Antonio},
     title = {On obtaining the time-invariant associated system of a periodic system through system equivalence},
     journal = {Kybernetika},
     pages = {649--655},
     publisher = {mathdoc},
     volume = {31},
     number = {6},
     year = {1995},
     mrnumber = {1374152},
     zbl = {0864.93033},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1995__31_6_a11/}
}