@unpublished{WeskeRinderleMaToumanietal.2013,
  author  = {Mathias Weske and Stefanie Rinderle-Ma and Farouk Toumani and Karsten Wolf},
  title   = {Special section on BPM 2011 conference. - Special Issue},
  institution = {Institut f{\"u}r Mathematik},
  pages     = {2},
  year    = {2013},
}