Tentative identification of urea and formamide in ISO-SWS infrared spectra of interstellar icesS. Raunier, T. Chiavassa, F. Duvernay, F. Borget, J. P. Aycard, E. Dartois and L. d'HendecourtA&A, 416 1 (2004) 165-169DOI: https://doi.org/10.1051/0004-6361:20034558
