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2. B.W. Mangum, G.A. Evans, Jr., in Temperature, Its Measurement and Control in Science and Industry, vol. 5, ed. by J.F. Schooley (AIP, New York, 1982), pp. 795–801
3. D.J. Curtis, in Temperature, Its Measurement and Control in Science and Industry, vol. 5, ed. by J.F. Schooley (AIP, New York, 1982), pp. 803–812
4. Historical Standard, ASTM E644-02 Standard Test Methods for Testing Industrial Resistance Thermometers (ASTM International, West Conshohocken, PA, 2002), pp. 10–11
5. http://www.omega.com/ppt/pptsc.asp?ref=F1500_F2000_F4000&Nav=temc13 , Omega Engineering, Inc., Stamford, CT (2010)