UNUSUAL ANISOTROPY MECHANISM IN CE-PNICTIDES DUE TO VIRTUAL VALENCE FLUCTUATION K. Takegahara, A. Yanase et T. KasuyaJ. Phys. Colloques, 41 C5 (1980) C5-327-C5-329DOI: https://doi.org/10.1051/jphyscol:1980554