@inproceedings{sgem2011s20113, title = {DESIGN OF TRANSPORT NOISE BARRIERS}, author = {Nikolai Nikolov}, booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference}, year = {2011}, pages = {}, publisher = {Stef92 Technology}, doi = {10.5593/sgem2011/s20.113} }