1. “The Principles of Nuclear Magnetism.”;Abragam,1961
2. “Electron Paramagnetic Resonance of Transition Ions.”;Abragam,1970
3. “Theory of Nuclear Magnetic Resonance”;Aleksandrov,1966
4. “Electron Paramagnetic Resonance, Techniques and Applications.”;Alger,1968
5. “Electron Paramagnetic Resonance”;Al'tshuler,1964