@article{RSM_2005__63_4_129378,
     author = {Caiado, M.I. and Sarychev, A.V.},
     title = {Remarks on stability of inverted pendula.},
     journal = {Rendiconti del seminario matematico},
     pages = {333--347},
     publisher = {mathdoc},
     volume = {63},
     number = {4},
     year = {2005},
     zbl = {1150.34021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RSM_2005__63_4_129378/}
}