Characterisation of the influence function non-additivities for a 1024-actuator MEMS deformable mirrorC. Blain, R. Conan, C. Bradley, O. Guyon and C. Vogel1st AO4ELT conference - Adaptive Optics for Extremely Large Telescopes, (2010) 06009DOI: https://doi.org/10.1051/ao4elt/201006009