1. The Principles of Nuclear Magnetism;Abragam,1961
2. Quadrupole couplings in nuclear magnetic resonance, general;Man,2000
3. Quadrupolar interactions;Man,1996
4. Quadrupolar nuclei in solid-state nuclear magnetic resonance;Freude,2000
5. Internal Spin Interactions and Rotations in Solids, in Encyclopedia of Nuclear Magnetic Resonance;Mehring,1996