@techreport{
    haos04:setabe,
    author = {Haanp{\"a}{\"a}, Harri and {\"O}sterg{\aa}rd, Patric R. J.},
    title = "Sets in {A}belian Groups with Distinct Sums of Pairs",
    url = "http://lib.hut.fi/Diss/2004/isbn9512269422/",
    pages = "10",
    address = "Espoo, Finland",
    number = "A87",
    month = "February",
    flags = "copy",
    year = "2004",
    annote = "sci",
    type = "Research Report",
    institution = "Helsinki University of Technology, Laboratory for Theoretical Computer Science"
}