TY - RPRT TI - Improving the Automatic Inversion of Digital ISIS-2 Ionogram Reflection Traces into Topside Vertical Electron-Density Profiles AU - Benson, R. F. AU - Truhlik, V. AU - Huang, X. AU - Wang, Y. AU - Bilitza, D. PY - 2011 UR - https://ntrs.nasa.gov/citations/20110011689 ID - 20110011689 ER -