TY  - RPRT
TI  - Effect of subsurface conditions on earthquake ground motions 
AU  - Yokel, Felix Y
PY  - 1993
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 4769
DO  - 10.6028/NIST.IR.4769
ER  -