@article{RSMUP_1967__39__35_0,
     author = {Gheorghiev, Gh.},
     title = {Sur les distributions structurales d'un pseudogroupe {Lie}},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {35--46},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {39},
     year = {1967},
     mrnumber = {225348},
     zbl = {0165.04202},
     language = {fr},
     url = {http://www.numdam.org/item/RSMUP_1967__39__35_0/}
}