References
- BISCHOF W.W., 1960, Periodical Variations of the At-mospheric CO, content in Scandinavia, Tellus 12, pp. 216–226.
- FONSELIUS, S., KOROLEFF, F. and Bum, K., 1955, Microdetermination of CO, in the Air with Current Data for Scandinavia, Tellus 7, pp. 258–265.
- FONSELIUS, S., 1958, Coordinates and Map of CO, and Chemical Stations, Tellus 10, pp. 170-171.
- FONSELIUS, S. and WIIRmz, K., 1960, A Method to make Standard CO, Samples to Infrared Gas Ana-lysis and the Operation of an IRGA Analyser for Air Samples from the Scandinavian Network, Tellus 12, pp. 227–230.
- KEELING, C. D., 1960, The Concentration and Iso-topic Abundances of Carbon Dioxide in the At-mosphere, Tellus 12, pp. 200–203.