@article{MZ_1972__124_171664,
     author = {Julia M. Nowlin Brown},
     title = {Homologies in {Collineation} {Groups} of {Finite} {Projective} {Planes.} {I.}},
     journal = {Mathematische Zeitschrift},
     pages = {133--140},
     publisher = {mathdoc},
     volume = {124},
     year = {1972},
     zbl = {0219.50021},
     url = {http://geodesic.mathdoc.fr/item/MZ_1972__124_171664/}
}