TY  - CPAPER
AU  - Boranbay Ratov
TI  - ABOUT A HALF-WAVE LENGTH OF THE BOTTOM-HOLE CORE DRILL COMPOSED OF STRUCTURAL ELEMENTS OF DIFFERENT STIFFNESS
T2  - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
PY  - 2017
SP  - 33
EP  - 43
DO  - 10.5593/sgem2017/12/s02.005
PB  - STEF92 Technology
ER  -