1. Ernst RR (1966) Sensitivity enhancement in magnetic resonance. In: Waugh JS (ed) Advances in magnetic resonance, Academic, New York, vol 2, p 1
2. Roth K (1987) J. Magn. Reson. 73: 343
3. 1. Titchmarsh EE (1948) Introduction to the theory of Fourier integrals, University Press, Oxford
4. 2. Helstrom CW (1960) Statistical theory of signal detection, Pergamon, Oxford
5. 3. Marshall AG (ed) (1982) Fourier, Hadamard, and Hilbert transforms in chemistry, Plenum, New York