RISC RISC Research Institute for Symbolic Computation  
  • @techreport{RISC1697,
    author = {Heinrich Rolletschek},
    title = {{Some New Lattice-Theoretic Constructions in High R.E. Degrees}},
    number = {93-35},
    year = {1993},
    note = {Published in Submitted for publication.},
    sponsor = { Austrian Science Foundation (FWF) project no.\ P7220.},
    type = {RISC Report Series},
    institution = {Research Institute for Symbolic Computation (RISC), Johannes Kepler University Linz},
    address = {Schloss Hagenberg, 4232 Hagenberg, Austria}
    }