References and Notes for Lanthanum ( La )

M00 D. C. Morton, Astrophys. J. Suppl. Ser. 130, 403 (2000).
MCS75 W. F. Meggers, C. H. Corliss, and B. F. Scribner, Natl. Bur. Stand. (U.S.), Monogr. 145 (1975).
MZH78 W. C. Martin, R. Zalubas, and L. Hagan, Atomic Energy Levels - The Rare Earth Elements, Natl. Stand. Ref. Data Ser., Natl. Bur. Stand. (U.S.) 60 (1978).
SR65 J. Sugar and J. Reader, J. Opt. Soc. Am. B 55, 1286 (1965).