1. 1
    Published 1985
    ...GN 669 .S693 1985...
    Book
  2. 2
    Published 1975
    ...GN 669 .S693...
    Book
  3. 3
    by Schlesier, E. (Erhard)
    Published 1953
    ...GN 669 .S342 1953...
    Thesis Book
  4. 4
    ...GN 669 .B967 1997...
    Book
  5. 5
    Published 1999
    ...GN 669 .T646 1999...
    Book
  6. 6
    Published 1985
    ...GN 669 .N56 1985...
    Book