DOI: https://doi.org/10.15198/seeci.2011.25.1-16
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DOI: https://doi.org/10.15198/seeci.2011.25.29-42
DOI: https://doi.org/10.15198/seeci.2011.25.43-67
DOI: https://doi.org/10.15198/seeci.2011.25.68-76