@phdthesis{
    haa04:concer.th,
    author = {Haanp{\"a}{\"a}, Harri},
    school = "Helsinki University of Technology",
    title = "Constructing Certain Combinatorial Structures by Computational Methods",
    url = "http://lib.hut.fi/Diss/2004/isbn9512269422/",
    month = "February",
    note = "\url{http://lib.hut.fi/Diss/2004/isbn9512269422/}",
    year = "2004",
    annote = "monog",
    type = "Electronic version of doctoral thesis"
}