1. Electron Paramagnetic Resonance of Transition Ions;Abragam,1970
2. Point Defects in Materials;Agulló-López,1988
3. EPR of Ni+ centers in RbCaF3: application to the study of the 195K structural phase transition;Alcalá;Phys. Rev.,1988
4. EPR study of Ni3+ in RbCaF3 below the cubic-tetragonal phase transition;Alcalá;Solid St. Commun.,1988
5. EPR study of Ni+ centers in SrF2;Alonso;Phys. Rev.,1983