TY - BOOK AU - Clements,David L. TI - Boundary value problems governed by second order elliptic systems T2 - Monograph and studies in mathematics SN - 0273085026 PY - 1981/// CY - Boston PB - Pitman KW - Boundary value problems KW - Differential equations, Elliptic N1 - Includes index and bibliography (p. 158-160) ER -