@article{MZ_1970__118_171454,
     author = {Jean Doyen},
     title = {Syst\`emes triples de {Steiner} non engendr\'es par tous leurs triangles.},
     journal = {Mathematische Zeitschrift},
     pages = {197--206},
     year = {1970},
     volume = {118},
     zbl = {0201.53302},
     url = {http://geodesic.mathdoc.fr/item/MZ_1970__118_171454/}
}