References and Notes for Zirconium ( Zr )

BGHL81 E. Biémont, N. Grevesse, P. Hannaford, and R. M. Lowe, Astrophys. J. 248, 867 (1981).
D95 P. S. Doidge, Spectrochim. Acta 50B, 209 (1995).
HHMR86 P. A. Hackett, M. R. Humphries, S. A. Mitchell, and D. M. Rayner, J. Chem. Phys. 85, 3194 (1986).
J98 S. Johansson, unpublished (1998). New observations of Zr I and Zr II and extensions of the analysis. No newly evaluated Zr I levels are available yet.
M52 C. E. Moore, Atomic Energy Levels, Natl. Bur. Stand. (U.S.) Circ. 467, Vol. II (1952); reprinted as Natl. Stand. Ref. Data Ser., Natl. Bur. Stand. (U.S.) 35 (1971).
MS96 W. C. Martin and J. Sugar, Phys. Rev. A 53, 1911 (1996).