@article{KYB_2013_49_5_a9,
     author = {Salas, Oscar and Casta\~neda, Herman and De Le\'on-Morales, Jes\'us},
     title = {Attitude observer-based robust control for a twin rotor system},
     journal = {Kybernetika},
     pages = {809--828},
     year = {2013},
     volume = {49},
     number = {5},
     mrnumber = {3182642},
     zbl = {1278.93283},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_2013_49_5_a9/}
}