About this article
Published Online: Dec 29, 2017
Page range: 30 - 42
DOI: https://doi.org/10.1515/rjti-2017-0052
Keywords
© 2017 Elvira Kalaitzaki et al., published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Kalaitzaki, Elvira
Democritus University of Thrace
Kollaros, George
Democritus University of Thrace
Athanasopoulou, Antonia
Democritus University of Thrace