1. Kay, S.M.: ‘Fundamentals of statistical signal processing: estimation theory’, (Prentice-Hall, Englewood Cliffs, NJ, USA 1993)
2. Stoica, P., and Moses, R.: ‘Introduction to spectral analysis’, (Prentice-Hall, Upper Saddle River, NJ, USA 1997)
3. Quinn, B.G., and Hannan, E.J.: ‘The estimation and tracking of frequency’, (Cambridge University Press 2001)
4. Maximum likelihood estimation of the parameters of a tone using real discrete data