Algol – CPNG: photon counting cameras for interferometry in visible wavelengths A. Blazit, E. Thiébaut, F. Vakili, L. Abe, A. Spang, J.-M. Clausse, D. Mourard, R. Foy and X. Rondeau EAS Publications Series, 37 (2009) 271-278 Published online: 11 June 2009 DOI: 10.1051/eas/0937033