Millimeter and submillimeter wave spectra of 13C methylamine R. A. Motiyenko, L. Margulès, V. V. Ilyushin, I. A. Smirnov, E. A. Alekseev, D. T. Halfen and L. M. Ziurys A&A, 587 (2016) A152 Published online: 07 March 2016 DOI: 10.1051/0004-6361/201526924