1. 1
    Published 1990
    ...HF 5001 .N2772...
    Journal
  2. 2
    Published 1979
    ...HF 5001 .N532...
    Journal
  3. 3
    ...HF 5001 .B565...
    Journal
  4. 4
    Published 1993
    ...HF 4030.5 .A1 .U66...
    Journal
  5. 5
    Published 2001
    ...HF 5001 .I35...
    Journal