@article{CMH_1983__58_139946,
     author = {Thomas Diethelm},
     title = {On the cohomology of groups of p-length 1.},
     journal = {Commentarii mathematici Helvetici},
     pages = {379--387},
     publisher = {mathdoc},
     volume = {58},
     year = {1983},
     zbl = {0537.20027},
     url = {http://geodesic.mathdoc.fr/item/CMH_1983__58_139946/}
}