LesterRHEnrickNLMottleyHEJr: Quality Control for Profit, Marcel Dekker Inc, New York, 1992.
2.
BrauerDCCesaroneJ: Total Manufacturing Assurance, ASQC Quality Press, Wisconsin, 1991.
3.
CristofoliniIMancusoGWolfG: Data Structuring in Quality Measurement Methods, Journal of Mechanical Engineering — Special Edition: 4th International Conference, Design to Manufacture in Modern Industry, ISSN-1580-1330, Sept 1999, pp.358–366.
4.
Quality Function Deployment, Galgano & Associati for Whirlpool, 1993.
5.
BrighamEO: The Fast Fourier Transform, Prentice-Hall, 1974.
6.
BracewellR: The Fourier Transform and Its Applications, McGraw-Hill, 1965.
7.
CooleyJWTukeyJW: An algorithm for the machine calculation of complex Fourier series, Mathematics of Computation, vol 19, no 90, 1965, pp.297–301.
