@inproceedings{sgem2017s03101,
  title = {ROTARY PERCUSSIVE DRILLING WITH SUBMERSIBLE DRILLING HAMMERS AND OTHER METHODS OF DRILLING WORK IN QUARRY OPERATIONS},
  author = {Milan Mikolas},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining},
  year = {2017},
  pages = {797-804},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/13/s03.101}
}