@article{
    BN98:aim,
    author = {Brewka, Gerd and Niemel{\"a}, Ilkka},
    note = "",
    title = "Report on the {Seventh International Workshop on Nonmonotonic Reasoning}",
    journal = "AI Magazine",
    number = "4",
    month = "",
    volume = "19",
    year = "1998",
    pages = "139"
}