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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14238/pi51.1.2011.17-21
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.689 KB) | DOI: 10.14238/pi58.2.2018.66-70
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.001 KB) | DOI: 10.14238/pi58.3.2018.116-22