Multiple field of view layer-oriented adaptive optics - Nearly whole sky coverage on 8 m class telescopes and beyondR. Ragazzoni, E. Diolaiti, J. Farinato, E. Fedrigo, E. Marchetti, M. Tordi and D. KirkmanA&A, 396 2 (2002) 731-744DOI: https://doi.org/10.1051/0004-6361:20021406