TY - BOOK AU - Breen, Lawrence TI - On the classification of 2-gerbes and 2-stacks T3 - Astérisque PY - 1994 IS - 225 PB - Société mathématique de France UR - http://archive.numdam.org/item/AST_1994__225__1_0/ LA - en ID - AST_1994__225__1_0 ER -