Millimeter-wave spectroscopy of hydantoin, a possible precursor of glycine Hiroyuki Ozeki, Rio Miyahara, Hiroto Ihara, Satoshi Todaka, Kaori Kobayashi and Masatoshi Ohishi A&A, 600 (2017) A44 Published online: 28 March 2017 DOI: 10.1051/0004-6361/201629880