@article{CMH_1991__66_4_140221,
     author = {Francois Lalonde and J.-C. Sikorav},
     title = {Sous-vari\'et\'es lagrangiennes et lagrangiennes exactes des fibr\'es cotangents.},
     journal = {Commentarii mathematici Helvetici},
     pages = {18--33},
     publisher = {mathdoc},
     volume = {66},
     number = {4},
     year = {1991},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/CMH_1991__66_4_140221/}
}