RISC RISC Research Institute for Symbolic Computation  
  • @techreport{RISC2486,
    author = {J. P. Bell and S. Gerhold},
    title = {{The Positivity Set of a Recurrence Sequence}},
    language = {english},
    year = {2005},
    note = {SFB report},
    howpublished = {to appear in Israel J. Math.},
    institution = {J. Kepler University Linz},
    length = {11}
    }