Ab initio modeling of molecular IR spectra of astrophysical interest: application to CH4 R. Warmbier, R. Schneider, A. R. Sharma, B. J. Braams, J. M. Bowman and P. H. Hauschildt A&A, 495 2 (2009) 655-661 Published online: 14 January 2009 DOI: 10.1051/0004-6361:200810983