1. Chamber systems for measuring nitrous oxide emissions in the field;Denmead;Soil Science Society of America Journal,1979
2. Measurement of the nitrous oxide content of the atmosphere;Dowdell;Laboratory Practice,1974
3. Detection of nitrous oxide at ambient atmospheric concentrations;Hall;Letcombe laboratory, annual report 1975,1976
4. Direct infield measurement of nitrous oxide flux from soils;Ryden;Soil Science Society of America Journal,1978