@article{AIF_1987__37_1_107_0,
     author = {Duff, Dusa Mc},
     title = {Applications of convex integration to symplectic and contact geometry},
     journal = {Annales de l'Institut Fourier},
     pages = {107--133},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {37},
     number = {1},
     year = {1987},
     doi = {10.5802/aif.1079},
     mrnumber = {88i:58057},
     zbl = {0572.58010},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/aif.1079/}
}