@book{
    ukkonen60,
    editor = "Elomaa, Tapio and Mannila, Heikki and Orponen, Pekka",
    publisher = "Springer",
    isbn = "ISBN 978-3-642-12475-4",
    title = "Algorithms and Applications, Essays Dedicated to Esko Ukkonen on the Occasion of His 60th Birthday",
    flags = "HIIT Algodan copy",
    year = "2010",
    impactfactor = "C2"
}