@article{MZ_1977__157_172601,
     author = {Peter J. Cameron},
     title = {Chohomological {Aspects} of {Two-Graphs.}},
     journal = {Mathematische Zeitschrift},
     pages = {101--120},
     year = {1977},
     volume = {157},
     url = {http://geodesic.mathdoc.fr/item/MZ_1977__157_172601/}
}