HANDBOOK ON THE PHYSICS AND CHEMISTRY OF RARE EARTHS VOLUME 1 METALS
KARL A.GSCHNEIDNER AND LEROY EYRING1978 年出版894 页ISBN:0444850228
THE INTERNATIONAL ENCYCLOPEDIA OF EDUCATION RESEARCH AND STUDIES VOLUME 4 F-H
TORSTEN HUSEN AND T.NEVILLE POSTLETHWAITE1985 年出版2377 页ISBN:0080281192