@article{Heinrichs1983,
  author    = {Heinrichs, Horst},
  title     = {Graphisch interaktive FE-Netzwerksgenerierung mit dem Programm FEDIG auf Rechnern ab 64 KB-Memory mit Digitizer},
  series = {IKO Software Service. 12 (1983)},
  journal   = {IKO Software Service. 12 (1983)},
  pages     = {191 -- 215},
  year      = {1983},
  language  = {de}
}
@article{HeinrichsHaub1991,
  author    = {Heinrichs, Horst and Haub, A.},
  title     = {Grafische Oberfl{\"a}chen vereinfachen den FEM-Einsatz},
  series = {CAD-CAM Report. 10 (1991), H. 3},
  journal   = {CAD-CAM Report. 10 (1991), H. 3},
  pages     = {79 -- 85},
  year      = {1991},
  language  = {de}
}
@article{HeinrichsWeck1981,
  author    = {Heinrichs, Horst and Weck, H.},
  title     = {Efficient finite-element structural analysis by interactive graphic mesh generation},
  series = {CIRP Annals. 30 (1981), H. 1},
  journal   = {CIRP Annals. 30 (1981), H. 1},
  pages     = {279 -- 284},
  year      = {1981},
  language  = {en}
}