Revision History for USGS Open-File Report 77-671

  William B. Joyner 

  A FORTRAN Program for Calculating Nonlinear Seismic
  Ground Response 

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  Posted online at http://pubs.usgs.gov/of/1977/0671/
  October 11, 2011

  Previous scan in /previous_scan/ folder
  November 8, 2010

  Initial release in paper form
  1977

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