Authors
Elvira Kalaitzaki
Democritus University of Thrace
Antonia Athanasopoulou
Democritus University of Thrace
© 2017 Elvira Kalaitzaki, George Kollaros, Antonia Athanasopoulou, published by Technical University of Civil Engineering of Bucharest
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.