@TechReport{plato-graphical-tr-05,
  author = {Lars Birkedal and S\o{}ren Debois and Ebbe Elsborg and Thomas Hildebrandt and Henning Niss},
  title = {Bigraphical {M}odels of {C}ontext-aware {S}ystems},
  institution = {The IT University of Copenhagen},
  year = {2005},
  number =  {74},
  address = {Rued Langgaards Vej 7, DK-2300 Copenhagen S},
  month = {November},
  note = {ISBN: 87-7949-110-3}
}