Revision History for USGS Open File Report 2010-1321 Danny A. Neumann, Selwyn McPherson, Simon L. Klemperer, Jonathan M.G. Glen, Darcy K. McPhee, and Karl Kappler Documentation for a Web Site to Serve ULF-EM (Ultra-Low Frequency Electromagnetic) Data to the Public; How ulfem- data.stanford.edu and the servers that support it retrieve, maintain, and serve data ----------------------------------------------------- Posted online at http://pubs.usgs.gov/of/2010/1321/ January 15, 2011 -----------------------------------------------------