Implications of Turbulence Optical Parameters on HAR Techniques at Dome C A. Ziad, E. Aristidi, A. Agabi, E. Fossat, J. Borgnino, J. Maire and F. Martin EAS Publications Series, 40 (2010) 21-31 Published online: 23 December 2009 DOI: 10.1051/eas/1040003