![](spacer.gif)
![Neutral Atom](neutralatom.gif)
![Finding list](findinglist.gif)
![Periodic Table](element.gif)
![Atomic Data](general.gif)
![Strong Lines](strong.gif)
![Neutral Atom Persistent Lines](persistent.gif)
![Neutral Atom Energy Levels](energy.gif)
![Singly Ionized Persistent Lines](persistent.gif)
![Singly Ionized Energy Levels](energy.gif)
References and Notes for Niobium ( Nb )
DHL86 D. W. Duquette, E. A. Den Hartog, and J. E. Lawler, J. Quant. Spectrosc. Radiat. Transfer 35, 281 (1986).
M00 D. C. Morton, Astrophys. J. Suppl. Ser. 130, 403 (2000).
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).
MCS75 W. F. Meggers, C. H. Corliss, and B. F. Scribner, Natl. Bur. Stand. (U.S.), Monogr. 145 (1975).
RCL00 A. N. Ryabtsev, S. S. Churilov, and U. Litzén, Phys. Scr. 62, 368 (2000).
RMBH87 D. M. Rayner, S. A. Mitchell, O. L. Bourne, and P. A. Hackett, J. Opt. Soc. Am. B 4, 900 (1987).