TY - JOUR AU - Sagave, Steffen AU - Schlichtkrull, Christian TI - Group completion and units in I-spaces JO - Algebraic and Geometric Topology PY - 2013 SP - 625 EP - 686 VL - 13 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2013.13.625/ DO - 10.2140/agt.2013.13.625 ID - 10_2140_agt_2013_13_625 ER -