References

• Bloomfield, P. 1976, ``Fourier Analysis of Time Series: an Introduction" (John Wiley & Sons - New York): introductory.
• EXOSAT Observatory Team 1991, ``The EXOSAT Database System: BROWSE Version 3.0 User's Guide", ESA TM-11.
• EXOSAT Observatory Team 1991, ``The EXOSAT Database System: On-line User's Guide" , ESA TM-12.
• Jenkins, G.M. and Watts, D.G. 1968, ``Spectral Analysis and its Applications" (Holden Day-Oakland): general.
• Leahy, D.A. et al. 1983, Ap. J., 266, 160: searches for periodicities
• Press, W.H. et al. 1986, ``Numerical Recipes", (Cambridge Univ. Press): general
• Sutherland, P.G. Weisskopf, M.C., Kahn, S.M. 1978, Ap. J., 219, 1029: counting statistics corrections
• Tennant, A. 1990, ``The QDP/PLT User's Guide", NASA-MSFC preprint
• van der Klis, M. 1989, in ``Timing Neutron Stars", NATO ASI, Series C, ed. H. Ogelmann (Dordrecht: Reidel), p.27: on Fourier techniques.