Ericsson , M., H. Johansson, R. Larsson, and L. Gisselsson. “Computherm. A New Device for Measurement of Coronary Blood Flow Using the Continuous Thermodilution Technique”. Upsala Journal of Medical Sciences, vol. 87, no. 1, Mar. 1982, pp. 27-31, doi:10.3109/03009738209178406.