@article{10_4064_ap_10_2_101_113,
     author = {H. Pidek-{\L}opusza\'nska and W{\l}adys{\l}aw \'Slebodzi\'nski},
     title = {Sur un pseudogroupe infini et un probl\`eme d'\'equivalence},
     journal = {Annales Polonici Mathematici},
     pages = {101--113},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {1961},
     doi = {10.4064/ap-10-2-101-113},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-10-2-101-113/}
}