%0 Journal Article %A Boersma, J. %T Boundary value problems in diffraction theory and lifting surface theory %J Compositio Mathematica %D 1964 %P 205-293 %V 16 %I Kraus Reprint %U http://www.numdam.org/item/CM_1964__16__205_0/ %G en %F CM_1964__16__205_0