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  1. 1
    by Portin, Göran, Portin, Göran
    Published 1962

    Thesis Book
  2. 2
    by Uusitalo, Outi
    Published 1998

    Thesis Book
  3. 3
    by Pirinen, Pekka
    Published 1996

    Thesis Book
  4. 4
  5. 5

    Thesis Book