Niederer, Hans-Martin, Sieghard Albert, Sigurd Bauerecker, Vincent Boudon, Jean-Paul Champion, and Martin Quack. “Global Analysis of the Infrared Spectrum of 13CH4: Lines in the Region 0 to 3200 cm–1”. CHIMIA 62, no. 4 (April 30, 2008): 273. Accessed May 2, 2024. https://www.chimia.ch/chimia/article/view/2008_273.