DOI: https://doi.org/10.25130/tjes.23.4.01
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DOI: https://doi.org/10.25130/tjes.23.4.05
DOI: https://doi.org/10.25130/tjes.23.4.06
DOI: https://doi.org/10.25130/tjes.23.4.07
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DOI: https://doi.org/10.25130/tjes.23.4.09
DOI: https://doi.org/10.25130/tjes.23.4.10
DOI: https://doi.org/10.25130/tjes.23.4.11
DOI: https://doi.org/10.25130/tjes.23.4.12