RUTHENIUM-99 MÖSSBAUER STUDY OF THE PEROVSKITE PHASES LaxSr1-xRuO3 AND LaxCa1-xRuO3 F. M. DA COSTA, R. GREATREX et N. N. GREENWOODJ. Phys. Colloques, 37 C6 (1976) C6-650DOI: https://doi.org/10.1051/jphyscol:19766137