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Alton, E.R.; Brown, R.D.; Carter, J.C.; Taylor, R.C., Vapor Pressures of the Methylamine-Boranes and Ammonia-Triborane 1, J. Am. Chem. Soc., 1959, 81, 14, 3550-3551, https://doi.org/10.1021/ja01523a016 . [all data]