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References
- ↑ Hall, Carl W.; Hinman, George W. (1983), Dictionary of Energy, CRC Press, p. 84, ISBN 0824717937
- 1 2 McMullin, Ernan (1968), “What Do Physical Models Tell Us?”, in B. van Rootselaar and J. F. Staal (eds.), Logic, Methodology and Science III. Amsterdam: North Holland, 385–396.
- ↑ Roman, Frigg; Hartmann, Stephan (27 February 2006). "Models in Science". In Zalta, Edward N. (ed.). The Stanford Encyclopedia of Philosophy (Fall 2012 ed.). Retrieved 24 July 2015.