Gschneidner, Karl A.. Handbook on the physics and chemistry of rare earths Vol.3-Non-metallic compounds-I / edited by Karl A.Gschneidner,Le Roy Eyring. - 1st ed / - Amsterdam : North-Holland Publishing Company , 1984 - xiii,664p ; ISBN: 0 444 85215 8 Subjects--Topical Terms: Rare Earths Dewey Class. No.: H2 / L9.3