Analysis of the infrared spectra of the peculiar post-AGB stars EP Lyrae and HD 52961 C. Gielen, H. Van Winckel, M. Matsuura, M. Min, P. Deroo, L. B. F. M. Waters and C. Dominik A&A, 503 3 (2009) 843-854 Published online: 02 July 2009 DOI: 10.1051/0004-6361/200912060