@TechReport{Wawrzoniak_PDN-03-014,
   Author      = "Mike Wawrzoniak and Larry Peterson and Timothy Roscoe",
   Title       = "{Sophia: An Information Plane for Networked Systems}",
   Institution = "PlanetLab Consortium",
   Number      = "PDN--03--014",
   Month       = "July",
   Year        = 2003
}