1. Afsar, M.N. and Hasted, J.B., 1977. Measurement of the optical constants of liquid water and water-d2 between 6 and 450 cm-1. J. Opt. Soc. Am. 67: 902–904.
2. Annino, G., Bertolini, D., et al. 2000. Dielectric properties of materials using whispering gallery dielectric resonators: Experiments and perspectives of ultra-wideband characterization. J. Chem. Phys. 112: 2308–2314.
3. Annino, G., Cassettari, M., et al. 2000a. Whispering gallery mode dielectric resonators in EMR spectroscopy above 150 GHz: problems and perspectives. Applied Magnetic Resonance 19: 495–506.
4. Annino, G., Cassettari, M., Longo, I. and Martinelli, M. 1999. Dielectric Resonators in ESR: Overview, Comments and Perspectives. Appl. Magn. Reson. 16.
5. Annino, G., Cassettari, M., et al. 1999a. A novel probe head for high-field, highfrequency electron paramagnetic resonance. Rev. Sci. lnstrum. 70: 1787–1793.