@inproceedings{KlingLucarelliHartmannetal.2009, author = {Kling, G{\"u}nther and Lucarelli, Stefano and Hartmann, Peter and Nattermann, Kurt and D{\"o}hring, Thorsten and Kuhr, Markus and Thomas, Peter}, title = {Double Ring Tests on ZERODUR K20 and Etched ZERODUR}, series = {Proceedings 11th European Conference on Spacecraft Structures, Materials and Mechanical Testing, 15-17 Sep 2009, Toulouse, France}, booktitle = {Proceedings 11th European Conference on Spacecraft Structures, Materials and Mechanical Testing, 15-17 Sep 2009, Toulouse, France}, year = {2009}, subject = {Spiegelteleskop}, language = {en} }