1. Status of the James Webb space telescope observatory;M Clampin;Proc SPIE,2012
2. Piston detection of a segmented mirror telescope using a curvature sensor: preliminary results with numerical simulations
3. Wavefront sensing and controls for the James Webb space telescope;D S Acton;Proc. SPIE,2012
4. Keck telescope primary mirror segments: initial alignment and active control;G A Chanan;Proceedings of European Southern Observatory Conference on Very Large Telescopes and their Instrumentation,1988
5. Curvature sensing and compensation: a new concept in adaptive optics;F Roddier;Appl. Opt,1988