1. P. G. MORRIS, ?Nuclear Magnetic Resonance Imaging in Medicine and Biology? (Oxford University Press, New York, 1986).
2. S. BLACKBAND and P. MANSFIELD,J. Phys. C: Solid St. Phys. 19 (1986) L49.
3. T. A. CARPENTER, L. D. HALL and P. JEZZARD,J. Magn. Resonance 84 (1989) 383.
4. A. G. WEBB, P. JEZZARD, L. D. HALL and S. NG,Polym. Commun. 30 (1989) 363.
5. M. A. HORSFIELD, E. J. FORDHAM, C. HALL and L. D. HALL,J. Magn. Resonance 81 (1989) 593.