TY - JOUR AU - Rune Haugseng AU - David Gepner AU - Thomas Nikolaus TI - Lax Colimits and Free Fibrations in $\infty$-Categories JO - Documenta mathematica PY - 2017 SP - 1225 EP - 1266 VL - 22 UR - http://geodesic.mathdoc.fr/articles/10.4171/dm/593/ DO - 10.4171/dm/593 ID - 10_4171_dm_593 ER -