Extension of ferromagnetism and metallicity to electron-rich manganites by Ru-doping: Generation of new CMR oxides Sm0.2Ca0.8Mn1-xRuxO3C. Martin, A. Maignan, M. Hervieu, B. Raveau and J. HejtmanekEur. Phys. J. B, 16 3 (2000) 469-474DOI: https://doi.org/10.1007/s100510070205