TY  - BOOK
AU  - Sih G C Ed.
TI  - Elastodynamic crack problems
T2  - Mechanics of fracture; 4
U1  - H418z7, L7 
PY  - 1977///
CY  - Leyden
PB  - Noordhoff International        
KW  -  Internal dynamics
KW  - Geology
ER  -