Brinchmann, J., Charlot, S., Kauffmann, G., Heckman, T., White, S. D. M., & Tremonti, C. (2013). Estimating gas masses and dust-to-gas ratios from optical spectroscopy. Monthly Notices of the Royal Astronomical Society, 432(3), 2112-2140. doi:10.1093/mnras/stt551.