@inproceedings{sgem2017s27103,
  title = {THE ISSUE OF COBBLED ROADWAYS},
  author = {Ivana Mahdalova},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Nano, Bio and Green - Technologies for a Sustainable Future},
  year = {2017},
  pages = {807-812},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/62/s27.103}
}