1
Rare earth elements. C12B. Compound with carbon : system number 39 /
Book
2
Sc, Y, La-Lu. Series E, E2a. Optical spectra of Ce-Lu Optical spectra of Nd /
Book
3
Sc, Y, La-Lu : rare earth elements. C11A. Compounds with boron : system number 39 /
Book
4
Sc, Y, La-Lu : rare earth elements. C11B. Compounds with boron : system number 39 /
Book