title: Comment on "Local lattice structure study of the octahedral (CrO6)9- clusters for Cr3+ ion doping in a variety of oxide crystals by simulating the corresponding EPR and optical spectra".
authors.affiliation: Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Avda. de los Castros s/n, 39005 Santander, Spain.
authors.forename: J M
authors.initials: JM
authors.lastname: García-Lastra
authors.forename: M T
authors.initials: MT
authors.lastname: Barriuso
authors.forename: J A
authors.initials: JA
authors.lastname: Aramburu
authors.forename: M
authors.initials: M
authors.lastname: Moreno