@article{MZ_1974__136_172023,
     author = {Peter J. Cameron},
     title = {Characterisation of {Some} {Steiner} {Systems,} {Parallelisms,} and {Biplanes.}},
     journal = {Mathematische Zeitschrift},
     pages = {31--40},
     publisher = {mathdoc},
     volume = {136},
     year = {1974},
     zbl = {0265.05006},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__136_172023/}
}