TY  - BOOK
AU  - Wyllie Duncan C
TI  - Rock fall engineering
SN  - 9781138077621 (pbk)
U1  - H23:(D), Q5 
PY  - 2015///
CY  - Boca Raton 
PB  - CRC Press     
KW  -  Coefficient of restitution
KW  -  Impact mechanics
KW  -  Rocks fall
KW  -  Velocities and trajectories
KW  - Geology
N1  - Appendix 209-228p.; References 229-233p.; Index 235-243p
ER  -