@inproceedings{GrumBlunkRojahnetal.2020,
  author    = {Marcus Grum and Oliver Blunk and Marcel Rojahn and Peter Fettke and Norbert Gronau},
  title     = {Research challenges of knowledge modelling and the outline of a research agenda},
  booktitle = {Knowledge in digital age : IFKAD 2020},
  year      = {2020},
}