%0 Journal Article %T An Optical Test And Alignment Method For The XMM Mirror Module %A Schmidt, M. %A Beckstette, K. %A Dinger, U. %A Kaufmann, P. %J Proceedings of SPIE %V 1159 %P 625-637 %@ 0277-786X %D 1989-11-27 %I SPIE %~ DeepDyve