Metastable RFe7 compounds (R=rare earths) and their nitrides with TbCu7 structure : The 40th annual conference on magnetism and magnetic materials - Mao, O.; Yang, J.; Altounian, Z.; Ström-Olsen, J. O. (American Institute of Physics (AIP), 1996)
http://dx.doi.org/10.1063/1.361739
Keywords: U