@book{Borys.1990b,
  address = {Kassel},
  author = {Borys, Bernd-Burkhard and Sundstr{\"o}m, G. A. and Fejes, Lajos and Str{\"a}tz, Gerd},
  institution = {{Universit{\"a}t Kassel}},
  interhash = {70c630e28ed62d22baccd6d397bfb90f},
  intrahash = {1f1a67b72b80819b8714cb9c2a6a4bf7},
  publisher = {Institut f{\"u}r Me{\ss}- u. Automatisierungstechnik},
  series = {IMAT-Bericht / MMS},
  title = {The intelligent graphical editor with design support and user model (IGE3): ESPRIT-GRADIENT Report P857-WP11-UKS 059},
  volume = 10,
  year = 1990
}

@book{Borys.1990b,
  address = {Kassel},
  author = {Borys, Bernd-Burkhard and Sundström, G. A. and Fejes, Lajos and Strätz, Gerd},
  institution = {{Universität Kassel}},
  interhash = {406b42190fcf1bc86354c1871910d96e},
  intrahash = {e1dbaafe08996c1d92f46a0a812ef0c8},
  publisher = {Institut für Meß- u. Automatisierungstechnik},
  series = {IMAT-Bericht / MMS},
  title = {The intelligent graphical editor with design support and user model (IGE3): ESPRIT-GRADIENT Report P857-WP11-UKS 059},
  volume = 10,
  year = 1990
}