@article{AIF_1981__31_2_61_0,
     author = {Cordero, Luis A. and Masa, X.},
     title = {Characteristic classes of subfoliations},
     journal = {Annales de l'Institut Fourier},
     pages = {61--86},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {31},
     number = {2},
     year = {1981},
     doi = {10.5802/aif.829},
     mrnumber = {83a:57033},
     zbl = {0442.57009},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.829/}
}