The NH2D hyperfine structure revealed by astrophysical observations F. Daniel, L. H. Coudert, A. Punanova, J. Harju, A. Faure, E. Roueff, O. Sipilä, P. Caselli, R. Güsten, A. Pon and J. E. Pineda A&A, 586 (2016) L4 Published online: 27 January 2016 DOI: 10.1051/0004-6361/201527768