@article{MZ_1962__79_170070,
     author = {Robert Heaton},
     title = {The polynomial cohomology ring for characteristic p.},
     journal = {Mathematische Zeitschrift},
     pages = {297--306},
     year = {1962},
     volume = {79},
     zbl = {0107.01601},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__79_170070/}
}