TY - CPAPER AU - Maciej Wrona TI - NEW DIGITAL CRACKMETER CONCEPT T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 14th SGEM GeoConference on INFORMATICS, GEOINFORMATICS AND REMOTE SENSING PY - 2014 DO - 10.5593/sgem2014/b21/s8.090 PB - Stef92 Technology ER -