@article{MOMA_1980__89_177963,
     author = {O. Bachmann},
     title = {On {Rank} 3 {Projective} {Designs.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {175--184},
     publisher = {mathdoc},
     volume = {89},
     year = {1980},
     zbl = {0432.51010},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1980__89_177963/}
}