TY - JOUR AU - Chan, C.Y. AU - Young, E.C. TI - Regular regions for parabolic and elliptic equations JO - Portugaliae mathematica PY - 1977 SP - 7 EP - 12 VL - 36 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1977__36_1_115296/ LA - en ID - PORMA_1977__36_1_115296 ER -