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IDS 2017, Cologne, Germany.
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IDS 2015, Cologne, Germany.
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AEEDC 2015, Dubai, United Arab Emirates.
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ADEE 2014, Riga, Latvia.
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ADEE 2014, Riga, Latvia.
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AEEDC 2014, Dubai, United Arab Emirates.
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SDS 2014, Riyadh, Saudi Arabia.
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Apollonia University 2013, Iași, Romania.
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ADEE 2013, Birmingham, United Kingdom.
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IDS 2013, Cologne, Germany.
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ACTA University 2013, Amsterdam, Netherlands.
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ACTA University 2013, Amsterdam, Netherlands.
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ACTA University 2013, Amsterdam, Netherlands.
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Swedental 2012, Gothenburg, Sweden.