Notholt, J., Toon, G. C., Fueglistaler, S., Wennberg, P. O., Irion, F., McCarthy, M., Scharringhausen, M., Siek Rhee, T., Kleinbohl, A. & velazco, V. A. (2010). Trend in ice moistening the stratosphere-constraints from isotope data of water and methane. Atmospheric Chemistry and Physics, 10 (1), 201-207.
Notholt, J., Toon, G. C., Fueglistaler, S., Wennberg, P. O., Irion, F., McCarthy, M., Scharringhausen, M., Siek Rhee, T., Kleinbohl, A. & velazco, V. A. (2010). Trend in ice moistening the stratosphere-constraints from isotope data of water and methane. Atmospheric Chemistry and Physics, 10 (1), 201-207.