1. Composite pulses;Levitt;Prog. NMR Spectrosc.,1986
2. Composite pulses;Levitt,1996
3. NMR population inversion using a composite pulse;Levitt;J. Magn. Reson.,1979
4. Radiofrequency pulse sequences which compensate their own imperfections;Freeman;J. Magn. Reson.,1980
5. Symmetrical composite pulse sequences for NMR population inversion. I. Compensation of resonance offset;Levitt;J. Magn. Reson.,1982