TY - JOUR AU - Shangbin Cui TI - Global existence of solutions for a free boundary problem modeling the growth of necrotic tumors JO - Interfaces and free boundaries PY - 2005 SP - 147 EP - 159 VL - 7 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4171/ifb/118/ DO - 10.4171/ifb/118 ID - 10_4171_ifb_118 ER -