@article{MZ_1965__89_170432,
     author = {Alexandre Froda},
     title = {Sur des familles de crit\`eres d'irrationalit\'e.},
     journal = {Mathematische Zeitschrift},
     pages = {126--136},
     publisher = {mathdoc},
     volume = {89},
     year = {1965},
     zbl = {0129.03203},
     url = {http://geodesic.mathdoc.fr/item/MZ_1965__89_170432/}
}