@article{CMH_1980__55_139818,
     author = {Luzius Gr\"unenfelder},
     title = {Lower central series, augmentation quotients and homology of groups.},
     journal = {Commentarii mathematici Helvetici},
     pages = {159--177},
     publisher = {mathdoc},
     volume = {55},
     year = {1980},
     zbl = {0443.20042},
     url = {http://geodesic.mathdoc.fr/item/CMH_1980__55_139818/}
}