@article{10_4153_CMB_2007_036_0,
     author = {Gutierrez, C. and Jarque, X. and Llibre, J. and Teixeira, M. A.},
     title = {Global {Injectivity} of {C} 1 {Maps} of the {Real} {Plane,} {Inseparable} {Leaves} and the {Palais{\textendash}Smale} {Condition}},
     journal = {Canadian mathematical bulletin},
     pages = {377--389},
     year = {2007},
     volume = {50},
     number = {3},
     doi = {10.4153/CMB-2007-036-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2007-036-0/}
}