1. 1
    by Beckmann, Petr
    Published 1987
    Subjects
    Book
  2. 2
    by Beckmann, Petr
    Published 1963
    Subjects
    Book
  3. 3
    Published 1980
    Subjects
    Conference Proceeding Book
  4. 4
    by Whale, H. A., 1921-
    Published 1969
    Subjects ...Ionospheric radio wave propagation....
    Book
  5. 5
    by Merrill, R. G.
    Published 1962
    Subjects ...Ionospheric radio wave propagation....
    Book
  6. 6
    Published 1931
    Subjects ...Radio wave propagation....
    Journal
  7. 7
    Subjects
    Serial