@article{SLC_1991_27_a1,
     author = {Bernd Schmalz},
     title = {Block {Designs} {With} {Prescribed} {Automorphism} {Group}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {27},
     year = {1991},
     url = {http://geodesic.mathdoc.fr/item/SLC_1991_27_a1/}
}