Savitzky, A.; Golay, M. J. E. (1964). "Smoothing and Differentiation of Data by Simplified Least Squares Procedures". Analytical Chemistry. 36 (8): 1627. Bibcode:1964AnaCh..36.1627S. doi:10.1021/ac60214a047.
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Savitzky, A.; Golay, M. J. E. (1964). "Smoothing and Differentiation of Data by Simplified Least Squares Procedures". Analytical Chemistry. 36 (8): 1627. Bibcode:1964AnaCh..36.1627S. doi:10.1021/ac60214a047.