RISC RISC Research Institute for Symbolic Computation  
  • @techreport{RISC3836,
    author = {C. Schneider},
    title = {{Structural Theorems for Symbolic Summation}},
    language = {english},
    number = {09-09},
    year = {2009},
    length = {25},
    type = {RISC Report Series},
    institution = {Research Institute for Symbolic Computation (RISC), Johannes Kepler University Linz},
    address = {Schloss Hagenberg, 4232 Hagenberg, Austria}
    }