@inproceedings{Frisch-10,
  title = {Diagram Editing on Interactive Displays Using Multi-Touch and Pen Gestures},
  author = {Mathias Frisch and Jens Heydekorn and Raimund Dachselt},
  year = {2010},
  doi = {10.1007/978-3-642-14600-8_18},
  url = {http://dx.doi.org/10.1007/978-3-642-14600-8_18},
  tags = {read},
  researchr = {https://researchr.org/publication/Frisch-10},
  cites = {0},
  citedby = {0},
  booktitle = {Proc. Int'l Conf. on the Theory and Application of Diagrams (DIAGRAMS'10)},
}

@inproceedings{1731933,
  title = {Investigating multi-touch and pen gestures for diagram editing on interactive surfaces},
  author = {Mathias Frisch and Jens Heydekorn and Raimund Dachselt},
  year = {2009},
  doi = {10.1145/1731903.1731933},
  url = {http://doi.acm.org/10.1145/1731903.1731933},
  tags = {read},
  researchr = {https://researchr.org/publication/1731933},
  cites = {0},
  citedby = {0},
  booktitle = {Proc. ACM Int'l Conf. on Interactive Tabletops and Surfaces (ITS '09)},
}