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  1. 1
    published 1992
    Book Conference Proceedings
  2. 2
    by Ehlich, Werner
    published 1979
    Book
  3. 3
  4. 4
  5. 5
    by Wagner, Margarete
    published 1982
    Book
  6. 6
    published 1992
    Book
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
    by Portanier, Gilbert
    published 1988
    Book
  12. 12
  13. 13
    published 1961
    Book
  14. 14
    published 1973
    Book
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20