TY - JOUR AU - John E. Andersson TI - Boundary regularity for a parabolic obstacle type problem JO - Interfaces and free boundaries PY - 2010 SP - 279 EP - 291 VL - 12 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4171/ifb/235/ DO - 10.4171/ifb/235 ID - 10_4171_ifb_235 ER -