Rollmann, B., Lombart, P., Rondelet, J., & Mercier, M. (1981). Determination of N-nitrosodiethanolamine in Cosmetics By Gas-chromatography With Electron-capture Detection. Journal of Chromatography A, 206(1), 158-163. https://doi.org/10.1016/S0021-9673(00)82619-9 (Original work published 1981)