@phdthesis{dnb-2853,
  title = {Authoring of semantic mathematical content for learning on the web},
  author = {Paul Libbrecht},
  year = {2012},
  url = {http://d-nb.info/1052549985},
  researchr = {https://researchr.org/publication/dnb-2853},
  cites = {0},
  citedby = {0},
  school = {Saarland University},
}