1. Vertical profiles of CH4 in the troposphere and stratosphere;Ehhalt;J. Geophys. Res.,1973
2. The atmospheric cycle of methane;Ehhalt;Tellus,1974
3. Hydroxyl radical kinetic spectroscopy. VI. Reactions with alkanes in the range 300-500° K;Greiner;J. Chem. Phys.,1970
4. Gas chromatographic measurements of hydrogen, methan, and neon in air;Heidt;J. Chromatogr.,1972
5. Measurements of N2O, CH4, H2, CO and CO2 in the non-urban troposphere;Heidt;J. Geophys. Res.,1977