Crystal and magnetic structure of (La0.70Ca0.30)(CryMn1-y)O3: a neutron powder diffraction study Bằng Capogna, L, Martinelli, A, Francesconi, MG, Radaelli, P, Carvajal, JR, Cabeza, O, Ferretti, M, Castellano, C, Corridoni, T, Pompeo, N