1
Rare earth elements. C12B. Compound with carbon : system number 39 /
Book
2
Rare earth elements. C12A. Compounds with carbon : system number 39 /
Book
3
Rare earth elements. E1. Optical spectra of Ce and Pr : system number 36 /
Book
4
Sc, Y, La-Lu. Series E, E2a. Optical spectra of Ce-Lu Optical spectra of Nd /
Book
5
Sc, Y, La-Lu : rare earth elements. C11B. Compounds with boron : system number 39 /
Book