TY - JOUR AU - John W. Barrett AU - Klaus Deckelnick TI - Existence and approximation of a nonlinear degenerate parabolic system modelling acid-mediated tumour invasion JO - Interfaces and free boundaries PY - 2012 SP - 343 EP - 363 VL - 14 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4171/ifb/284/ DO - 10.4171/ifb/284 ID - 10_4171_ifb_284 ER -