TY  - RPRT
TI  - Testing and Development of a Percussive Augmenter for Rotary Drills
AU  - Donnelly, Christopher
AU  - Bar-Cohen, Yoseph
AU  - Chang, Zensheu
AU  - Badescu, Mircea
AU  - Sherrit, Stewart
PY  - 2011
UR  - https://ntrs.nasa.gov/citations/20150006614
ID  - 20150006614
ER  -