%0 Journal Article %A Lo, Chi Yeung %T Boundary value problems of singular elliptic partial differential equations %J Glasgow mathematical journal %D 1972 %P 111-118 %V 13 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500001506/ %R 10.1017/S0017089500001506 %F 10_1017_S0017089500001506