@article{SM_1992_72_1_a0,
     author = {A. A. Davydov},
     title = {Structural stability of control systems on orientable surfaces},
     journal = {Sbornik. Mathematics},
     pages = {1--28},
     publisher = {mathdoc},
     volume = {72},
     number = {1},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1992_72_1_a0/}
}