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