TY - JOUR AU - Torbjörn Kolsrud TI - A uniqueness theorem for higher order elliptic partial differential equations. JO - Mathematica Scandinavica PY - 1982 SP - 323 EP - 332 VL - 51 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MS2_1982__51_166822/ ID - MS2_1982__51_166822 ER -