Multiphase superconductivity in skutterudite K. Maki, H. Won, P. Thalmeier, Q. Yuan, K. Izawa and Y. Matsuda Europhys. Lett., 64 4 (2003) 496-502 Published online: 01 November 2003 DOI: 10.1209/epl/i2003-00250-2