TY - JOUR AU - Diaz, J.B. AU - Ram, R.B. AU - Verma, G.R. TI - Reflection principles for Laplace's equation when the boundary data involves derivatives of higher order JO - Portugaliae mathematica PY - 1983 SP - 23 EP - 40 VL - 42 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1983__42_1_115523/ LA - en ID - PORMA_1983__42_1_115523 ER -