@techreport{
    hajn:98,
    author = "Hajnicz, Elżbieta",
    title = "Intervals in non-linear point time. {T}he longer paper",
    year = "1998",
    number = "868",
    address = "Warsaw",
    type = "{IPI PAN} Research Report",
    institution = "Institute of Computer Science, Polish Academy of Sciences"
}