Willke, B.; Aufmuth, P.; Aulbert, C.; Babak, S.; Balasubramanian, R. et al.: Status of the GEO600 gravitational wave detector. In: Saulson, P.; Cruise, A.M.(Eds.): Gravitational-Wave Detection. Bellingham, Wash. : SPIE, 2003 (Proceedings of SPIE ; 4856), S. 238-246. DOI:
https://doi.org/10.1117/12.459095