Suggested citation and version history for


  Kayen, Robert, Scasserra, Giuseppe, Stewart Jonathan P., 
       and Lanzo, Giuseppe, 2008, revised 2009, Shear wave 
       structure of Umbria and Marche, Italy, strong motion 
       seismometer sites affected by the 1997-98 Umbria-
       Marche, Italy, earthquake sequence:  U.S. Geological 
       Survey Open-File Report 2008-1010, v. 1.1, 51 p. 
       [http://pubs.usgs.gov/of/2008/1010/].


  Version 1.1

  March 25, 2009

  Made minor revisions to the abstract
  Fixed some typos and figure problems with a few plots
  Released back online


  Version 1.0, 

  August 29, 2008
  Removed full text PDF for revising

  January 23, 2008
  Initial release online at
  http://pubs.usgs.gov/of/2008/1010/