george.nica@utcb.ro
vasile.calofir@upb.ro
iccoraci@gmail.com
© 2018 George Bogdan Nica, Vasile Calofir, Ioan Cezar Corâci, published by Technical University of Civil Engineering of BucharestThis work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.