TY - RPRT TI - First USGS urban seismic hazard maps predict the effects of soils AU - C.H. Cramer AU - J.S. Gomberg AU - E.S. Schweig AU - B.A. Waldron AU - K. Tucker PY - 2006 UR - https://pubs.usgs.gov/publication/70030869 ID - 70030869 ER -