1991, Ehhalt, D.H., U. Schmidt, R. Zander, Ph. Demoulin, and C. P. Rinsland, Seasonal cycle and secular trend of the total and tropospheric column abundance of ethane above the Jungfraujoch, Journal of Geophysical Research, 96, 4985-4994
Tags: C2H6, FTIR
1961, Mastenbrook, H.J., Dinger, J.E., Distribution of Water Vapor in the Stratosphere, Journal of Geophysical Research, 66, 1437–1444
Tags: H2O, Sonde