1. M. Heinonen, Humidity generator for the calibration of a dew-point hygrometer, M.Sc. Thesis, Helsinki University, 1991 (in Finnish).
2. The CMA humidity standard;Heinonen;Measurement,1996
3. Fundamental concepts and definitions relating to humidity;Harrison,1965
4. Important new values of the physical constants of 1986, vapour pressure formulations based on the ITS-90 and psychrometer formulae;Sonntag;Zeitschrift für Meteorologie,1990
5. Comparison of the humidity standards at the CETIAT and the CMA;Heinonen;Metrologia,1996