TY - JOUR AU - Sebastian Thomas TI - On the second cohomology group of a simplicial group JO - Homology, homotopy, and applications PY - 2010 SP - 167 EP - 210 VL - 12 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4310/HHA.2010.v12.n2.a6/ DO - 10.4310/HHA.2010.v12.n2.a6 LA - en ID - HHA_2010_12_2_a6 ER -