1. 1
    Published 1981
    ...HD 876 .A277...
    Book
  2. 2
    by Boyce, James K.
    Published 1987
    ...HD 2075.6 .B789...
    Book
  3. 3
    Published 1989
    ...HQ 1742 .G325...
    Conference Proceeding Book
  4. 4
    Published 2017
    ...HC 440 .E5 .B66 2017...
    Book