1. 1
    Published 1988
    ...HD 8013 .N52 .N532...
    Journal
  2. 2
    Published 1988
    ...HD 8013 .N52 .N532 n...
    Journal
  3. 3
    Published 1990
    ...HD 6935.5 .Z7 .B26 .F516...
    Journal
  4. 4
    Published 1991
    ...HD 8013 .N52 .N532 n...
    Journal
  5. 5
    Published 1990
    ...HD 8690.8 .A1 .A832...
    Journal
  6. 6
    Published 1983
    ...HD 8690.8 .A1 .A832...
    Journal
  7. 7
    Published 1987
    ...HD 8039 .P15 .N5 .N532...
    Journal