Backer, Mattias de (Free University of Brussels, Belgium),Melgaco, Lucas (Free University of Brussels, Belgium),Varna, Dr. Georgiana (University of Glasgow, UK),Menichelli, Francesca (University of C
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Maria (University of Peloponnese Nikolakaki Greece),Leonidas (Varna Free University Vatikiotis Cyprus)
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Polkowski, Zdzislaw (Karkonosze State Univ of Applied Sci. in Jelenia Gora),Mishra, Sambit Kumar (Gandhi Institute for Edu. and Tech., India),Vasilev, Julian (Univ. of Economics Varna, Bulgaria)
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Ramesh Talreja (EDT)/ Janis Varna (EDT)
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；Polkowski, Zdzislaw (Karkonosze State Univ of Appl. Sci., Jelenia Gora),Mishra, Sambit Kumar (Gandhi Inst. for Edu. and Tech., India),Vasilev, Julian (Univ. of Eco. Varna, Bulgaria)
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