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DOI: https://doi.org/10.15198/seeci.2012.28.11-29
DOI: https://doi.org/10.15198/seeci.2012.28.30-48
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DOI: https://doi.org/10.15198/seeci.2012.28.70-95
DOI: https://doi.org/10.15198/seeci.2012.28.96-97
DOI: https://doi.org/10.15198/seeci.2012.28.98-99