Precision Fe I and Fe II wavelengths in the red and infra-red spectrum of the iron-neon hollow cathode lamp G. Nave, R.C.M. Learner, J.E. Murray, A.P. Thorne and J.W. Brault J. Phys. II France, 2 4 (1992) 913-929 DOI: 10.1051/jp2:1992175