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Olga Nežerenko
Department of Business Administration, Tallinn School of Economics and Business Administration, Tallinn University of Technology, Tallinn, 12618, Akadeemia tee 3, Estonia, Phone: +3725264686
Ott Koppel
Department of Logistics and Transport, Faculty of Civil Engineering, Tallinn University of Technology, Tallinn 12616, Akadeemia tee 15a, Estonia, Phone: +372 62 02 605