TY  - RPRT
TI  - Ionospheric electron-density profiles with continuous gradients and underlying ionization corrections. II.
AU  - Howe, H. H.
AU  - Mckinnis, D. E.
PY  - 1967
UR  - https://ntrs.nasa.gov/citations/19680029525
ID  - 19680029525
ER  -