@article{10_4064_ap_6_3_301_304,
     author = {J. Szarski and T. Wa\.zewski},
     title = {Interpr\'etation g\'eom\'etrique des conditions d'int\'egrabilit\'e d'un syst\`eme d'\'equations aux diff\'erentielles totales},
     journal = {Annales Polonici Mathematici},
     pages = {301--304},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1959},
     doi = {10.4064/ap-6-3-301-304},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-6-3-301-304/}
}