@article{CMH_1967__42_139331,
     author = {Armand Wyler},
     title = {Sur certaines singularit\'es d'applications de vari\'et\'es topologiques.},
     journal = {Commentarii mathematici Helvetici},
     pages = {28--48},
     publisher = {mathdoc},
     volume = {42},
     year = {1967},
     zbl = {0148.17301},
     url = {http://geodesic.mathdoc.fr/item/CMH_1967__42_139331/}
}