%0 Journal Article %A Patterson, S. J. %T The laplacian operator on a Riemann surface, III %J Compositio Mathematica %D 1976 %P 227-259 %V 33 %N 3 %I Noordhoff International Publishing %U http://archive.numdam.org/item/CM_1976__33_3_227_0/ %G en %F CM_1976__33_3_227_0