Augustin Leiter. "DEVELOPMENT OF AUTOMATIC DATALOGGER SYSTEM FOR HEAVY DYNAMIC PENETROMETER." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Science and Technologies in Geology, Exploration and Mining, 2018, pp. 287-294. https://doi.org/10.5593/sgem2018/1.3/s03.037