@article{GabrysiakGieseSeibel2012,
  author    = {Gabrysiak, Gregor and Giese, Holger and Seibel, Andreas},
  title     = {Towards next-generation design thinking II : virtual muti-user software prototypes},
  year      = {2012},
  language  = {en}
}
@article{GabrysiakGieseSeibel2011,
  author    = {Gabrysiak, Gregor and Giese, Holger and Seibel, Andreas},
  title     = {Towards next generation design thinking : scenario-based prototyping for designing complex software systems with multiple users},
  isbn      = {978-3-642-13756-3},
  year      = {2011},
  language  = {en}
}