@book{B{\"u}chlerDecker2018,
  author    = {B{\"u}chler, Jan-Philipp and Decker, Jennifer},
  title     = {Teaching case studies - marketing and branding},
  publisher = {Logos Verlag},
  address   = {Berlin},
  isbn      = {978-3-8325-4635-9},
  pages     = {II, 185},
  year      = {2018},
  language  = {en}
}
@book{OPUS4-2521,
  title     = {Requirements engineering: foundation for software quality},
  editor    = {Kamsties, Erik and Horkoff, Jennifer and Dalpiaz, Fabiano},
  publisher = {Springer International Publishing},
  address   = {Cham},
  isbn      = {978-3-319-77242-4},
  pages     = {XVII, 369},
  year      = {2018},
  language  = {en}
}
@book{OPUS4-2017,
  title     = {Two cities - Tehran/Dortmund},
  editor    = {Winde, J{\"o}rg},
  publisher = {Fachhochschule Dortmund},
  address   = {Dortmund},
  pages     = {279},
  year      = {2018},
  language  = {en}
}