1. 1
    by Bertram, Geoffrey
    Published 1991
    ...HD 9502 .N52 .B548 r...
    Book
  2. 2
    by Burnell, Stephen, 1959-
    Published 1992
    ...HC 665 .C945 .B963...
    Book
  3. 3
    Published 1991
    ...HC 665 .C945 .P273...
    Conference Proceeding Book
  4. 4
    by Nana, Ganesh
    Published 1995
    ...HC 665 .N175 d...
    Book