• Fox, M. W., and C. A. Blundell (1989), Automatic scaling of digital ionograms, Radio Sci., 24(6), 747761.
  • Gilbert, J. D., and R. W. Smith (1988), A comparison between the automatic ionogram scaling system ARTIST and the standard manual method, Radio Sci., 23(6), 968974.
  • Igi, S., H. Minakoshi, and M. Yoshida (1992), Automatic ionogram processing system: 2. Automatic ionogram scaling, J. Commun. Res. Lab., 39(2), 367379.
  • Mayaud, P. N. (Ed.) (1980), Derivation, Meaning and Use of Geomagnetic Indices, Geophys. Monogr. Ser., vol. 22, AGU, Washington, D. C.
  • McNamara, L. F. (2006), Quality figures and error bars for autoscaled Digisonde vertical incidence ionograms, Radio Sci., 41, RS4011, doi:10.1029/2005RS003440.
  • Pezzopane, M., and C. Scotto (2005), The INGV software for the automatic scaling of foF2 and MUF (3000)F2 from ionograms: A performance comparison with ARTIST 4.01 from Rome data, J. Atmos. Sol. Terr. Phys., 67(12), 10631073.
  • Piggott, W. R., and K. Rawer (1972), U.R.S.I. Handbook of Ionogram Interpretation and Reduction, 2nd ed., Rep. UAG-23, World Data Cent. A, Boulder, Colo.
  • Reinisch, B. W. (1996), Modern ionosonde, in Modern Ionospheric Science, edited by H. Kohl, R. Rüster, and K. Schlegel, pp. 440458, Eur. Geophys. Soc., Katlenburg-Lindau, Germany.
  • Reinisch, B. W., and X. Huang (1983), Automatic calculation of electron density profiles from digital ionograms: 3. Processing of bottomside ionograms, Radio Sci., 18(3), 477492.
  • Reinisch, B. W., X. Huang, I. A. Galkin, V. Pznukhov, and A. Kozlov (2005), Recent advances in real-time analysis of ionograms and ionospheric drift measurements with digisondes, J. Atmos. Sol. Terr. Phys., 67, 10541062.
  • Stamper, R., et al. (2004a), Nowcasting, forecasting and warning for ionospheric propagation: Tools and methods, Ann. Geophys., suppl. S, 47(2–3), 957983.
  • Stamper, R., J. Lilensten, and N. Jakowski (2004b), Nowcasting, forecasting and warning for ionospheric propagation: Supporting databases, Ann. Geophys., suppl. S, 47(2–3), 945955.
  • Zolesi, B., and L. R. Cander (2006), Effects of the upper atmosphere on terrestrial and Earth-space communications: Final results of the EU COST 271 action, Adv. Space Res., 37(6), 12231228.