@article{Denzler96:ARAa,
    type = {article},
    key = {Denzler96:ARAa},
    title = {Active Rays: A New Approach to Contour Tracking},
    author = {Joachim Denzler and Heinrich Niemann},
    journal = {International Journal of Computing and Information Technology},
    year = {1996},
    number = {1},
    pages = {9-16},
    volume = {4},
    groups = {before2000},
    keywords = {Bild},
}