@article{IM_1973__21_142230,
     author = {W. de Melo},
     title = {Structural {Stability} of {Diffeomorphisms} on {Two-Manifolds.}},
     journal = {Inventiones mathematicae},
     pages = {233--246},
     publisher = {mathdoc},
     volume = {21},
     year = {1973},
     zbl = {0291.58011},
     url = {http://geodesic.mathdoc.fr/item/IM_1973__21_142230/}
}