Goldman, A., Rinsland, C. P., Perrin, A., Flaud, J. -M., Barbe, A., Camy-Peyret, C., … Smith, M. A. H. (2002). Weak ozone isotopic absorption in the 5 μm region from high resolution FTIR solar spectra. Journal Of Quantitative Spectroscopy &Amp; Radiative Transfer, 74, 133-138. doi:10.1016/S0022-4073(01)00185-6