Sonnemann, G. R., Hartogh, P., Berger, U., Lübken, F.-J., & Grygalashvyly, M. (2012). Anthropogenic effects on the distribution of minor chemical constituents in the mesosphere/lower thermosphere - A model study. Advances in Space Research, 50(5), 598-618. doi:10.1016/j.asr.2012.05.016.