@book{HagedornSchoebelUflackeretal.2009,
  author    = {Benjamin Hagedorn and Michael Sch{\"o}bel and Matthias Uflacker and Flavius Copaciu and Nikola Milanovic},
  title     = {Proceedings of the fall 2006 workshop of the HPI research school on service-oriented systems engineering},
  isbn      = {978-3-939469-58-2},
  year      = {2009},
}