The first optical characterization of the Oukaïmeden site with the Generalized Seeing Monitor (GSM)A. Ziad, A. Jabiri, Z. Benkhaldoun, F. Martin, R. Conan, M. Lazrek and J. BorgninoA&A, 365 2 (2001) 324-329DOI: https://doi.org/10.1051/0004-6361:20000030