1. A. Ochiai, T. Suzuki and T. Kasuya, J. Phys. Soc. Japan, to be published
2. Valence Instabilities;Ott,1982
3. proceedings of Yamada conf.;Oyamada,1990
4. Kondo behaviour of the electrical resistivity in USb and UTe
5. Valence Instabilities;Kasuya,1982