Comment on "local lattice structure study of the octahedral (CrO 6)9- clusters for Cr3+ ion doping in a variety of oxide crystals by simulating the corresponding EPR and optical spectra"

1. Garcîa-Lastra, J.M.
2. Barriuso, M.T.
3. Aramburu, J.A.
4. Moreno, M.