1. A. G. Maki, J. S. Wells:Wavenumber Calibration Tables from Heterodyne Frequency Measurements, NIST Spec. Publ. 821 (US Department of Commerce, Washington, DC 1991)
2. G. Guelachvili, K. N. Rao:Handbook of Infrared Standards II (Academic, Boston 1993)
3. M. Schneider, K. M. Evenson, M. D. Vanek, D. A. Jennings, J.S. Wells, A. Stahn, W. Urban: J. Mol. Spectrosc.135, 197 (1989)
4. G. Magerl, J. M. Frye, W. A. Kreiner, T. Oka: Appl. Phys. Lett.42, 656 (1983)
5. M. Mürtz, M. Schaefer, T. George, J. S. Wells, W. Urban: Appl. Phys. B (in press)