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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jep.v19i1.4435
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (501.509 KB) | DOI: 10.20884/1.erjpe.2010.5.1.430
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (56.281 KB) | DOI: 10.20884/1.erjpe.2014.9.1.479