Optical materials for near infrared Wollaston prisms E. Oliva, S. Gennari, L. Vanzi, A. Caruso and M. Ciofini Astron. Astrophys. Suppl. Ser., 123 1 (1997) 179-182 Published online: 15 May 1997 DOI: 10.1051/aas:1997311