@inproceedings{sgem2013s05012, title = {GPR IDENTIFICATION OF PRESTRESSING TENDONS IN AREAS WITH HIGH DENSITY OF ORDINARY REINFORCEMENT.}, author = {Piotr Owerko}, booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING}, year = {2013}, pages = {}, publisher = {Stef92 Technology}, doi = {10.5593/sgem2013/ba1.v2/s05.012} }