%0 Journal Article %A A.L. Mullikin %A K.T. Smith %T Elliptic Differential Problems with High Order Boundary Conditions. %J Mathematica Scandinavica %D 1963 %P 178-188 %V 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1963__12_165843/ %F MS2_1963__12_165843