@phdthesis{dnb-9950,
  title = {Nichtdeterministische algebraische Spezifikationen},
  author = {Heinrich Hußmann},
  year = {1989},
  url = {http://d-nb.info/891603115},
  researchr = {https://researchr.org/publication/dnb-9950},
  cites = {0},
  citedby = {0},
  school = {University of Passau, Germany},
}