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  1. 1
    Open Access
    published 2004
    EZB
    Read me
    Volltext
    Electronic Journal
  2. 2
    Open Access
  3. 3
    Open Access
  4. 4
    Open Access
  5. 5
    Open Access
  6. 6
    Open Access
  7. 7
    Open Access
  8. 8
    Open Access
  9. 9
    Open Access
  10. 10
    Open Access
  11. 11
    Open Access
  12. 12
    Open Access
  13. 13
    Open Access
  14. 14
    Open Access
  15. 15
    Open Access
  16. 16
    Open Access
  17. 17
    Open Access
  18. 18
    Open Access
  19. 19
    Open Access
  20. 20
    Open Access