An integrated optics beam combiner for the second generation VLTI instruments M. Benisty, J.-P. Berger, L. Jocou, P. Labeye, F. Malbet, K. Perraut and P. Kern A&A, 498 2 (2009) 601-613 Published online: 05 March 2009 DOI: 10.1051/0004-6361/200811083