1. 1
    Published 1987
    ...HG 1233 .I34...
    Book
  2. 2
    ...HN 683.5 .S989...
    Conference Proceeding Book
  3. 3
    Published 1989
    ...HQ 1742 .G325...
    Conference Proceeding Book
  4. 4
    Published 1991
    ...HT 147 .I5 .C5812...
    Book
  5. 5
    Published 1991
    ...HF 3788 .A78 .E55...
    Book
  6. 6
    Published 1979
    ...HN 687 .S678...
    Book