@article{AIF_1986__36_2_193_0,
     author = {Morvan, Jean-Marie and Niglio, Louis},
     title = {Classes caract\'eristiques des couples de sous-fibr\'es lagrangiens},
     journal = {Annales de l'Institut Fourier},
     pages = {193--209},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {36},
     number = {2},
     year = {1986},
     doi = {10.5802/aif.1055},
     mrnumber = {87m:58165},
     zbl = {0578.55010},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.5802/aif.1055/}
}