RISC RISC Research Institute for Symbolic Computation  
  • @techreport{RISC1812,
    author = {Sabine Stifter},
    title = {{Voronoi Diagrams of General Sets in 2D, Especially Semi-Algebraic Sets}},
    number = {90-08},
    year = {1990},
    type = {RISC Report Series},
    institution = {Research Institute for Symbolic Computation (RISC), Johannes Kepler University Linz},
    address = {Schloss Hagenberg, 4232 Hagenberg, Austria}
    }