1991, Demoulin, Ph., C.B. Farmer, C.P. Rinsland, and R. Zander, Determination of absolute strengths of N2 quadrupole lines from high resolution ground based IR solar observations, Journal of Geophysical Research, 96, 13,003-13,008
Tags: FTIR, N2
1989, Zander, R., Ph. Demoulin, D. H. Ehhalt, and U. Schmidt, Secular increase of the vertical column abundance of methane derived from IR solar spectra recorded at the Jungfraujoch station, Journal of Geophysical Research, 94, 11,029-11,039
Tags: CH4, FTIR