Correction of quasi-static wavefront errors for ELT with two sequential DMsL. Pueyo, S. B Shaklan, A. Give’on, M. Troy, N. Jeremy Kasdin, J. Kay, T. Groff, M. McElwain and R. Soummer1st AO4ELT conference - Adaptive Optics for Extremely Large Telescopes, (2010) 05009DOI: https://doi.org/10.1051/ao4elt/201005009