1. 1
    Serial
  2. 2
    Published 1990
    Book
  3. 3
    Published 1989
    Serial
  4. 4
    by Swithinbank, Charles
    Published 1965
    Book
  5. 5
    Published 1963
    Conference Proceeding Journal
  6. 6
    by Ott, Russell E.
    Published 1980
    Book
  7. 7