1. 1
  2. 2
    Published 1992
    ...HF 1591 .D997...
    Book
  3. 3
    Published 1991
    ...HC 441 .Z9 .E5 .D489...
    Book
  4. 4
    Published 2000
    ...HD 2346 .A744 .S635 2000...
    Conference Proceeding Book
  5. 5
    Published 1999
    ...HQ 1075.5 .A785 .T772 1999...
    Book