RISC RISC Research Institute for Symbolic Computation  
  • @techreport{RISC1443,
    author = {Erik Hillgarter},
    title = {{The Classification Problem for (Point) Symmetries of 2nd Order PDE's in one Dependent and two Independent Variables}},
    number = {99-11},
    year = {1999},
    month = {April},
    note = {SFB Report},
    sponsor = {FWF project F013, SFB F013},
    type = {RISC Report Series},
    institution = {Research Institute for Symbolic Computation (RISC), Johannes Kepler University Linz},
    address = {Schloss Hagenberg, 4232 Hagenberg, Austria}
    }