References and Notes for Erbium ( Er )

K91 V. A. Komarovskii, Opt. Spectrosc. (USSR) 71, 559 (1991).
M00 D. C. Morton, Astrophys. J. Suppl. Ser. 130, 403 (2000).
M64b L. C. Marquet, Ph. D. Thesis, Univ. California, Berkeley (1964). The most complete available list of energy-level classifications for Er I lines is given in an unpublished report by Spector and Held [SH80].
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).
SH80 N. Spector and S. Held, Israel Atomic Energy Comm. Report IA-1354-T (1980).
SR65 J. Sugar and J. Reader, J. Opt. Soc. Am. B 55, 1286 (1965).
WSPC78 E. F. Worden, R. W. Solarz, J. A. Paisner, and J. G. Conway, J. Opt. Soc. Am. B 68, 52 (1978).