TY - SER AU - Grad,G.B. AU - Fernández Guillermet,A. AU - Pieres,J.J. AU - Cuello,G.J. TI - Characterization of the metastable omega phase in the Zr-Nb system : lattice parameters and composition dependence of bonding lenghts PY - 2006/// KW - Sistema Zr-Nb ER -