@Proceedings{alani2006proceedings,

  title  = {Proceedings of the 2nd Workshop on Semantic Network Analysis},

  year   = {2006},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/ws/sna2006/},

  const  = {\ text}
}
@Proceedings{stumme05semanticnetworkanalysis,

  title  = {Proceedings of the First Workshop on Semantic Network Analysis },

  year   = {2005},
  number = {},
  url    = {http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-171/},

  const  = {\ text}
}