@inproceedings{Witbrock05knowledgebegets,
    author	= {Michael Witbrock and Cynthia Matuszek and Antoine Brusseau and Robert Kahlert and C. Bruce Fraser and Douglas Lenat},
    title	= {Knowledge Begets Knowledge: Steps towards Assisted Knowledge Acquisition in {C}yc},
    booktitle	= {Proc. of the AAAI 2005 Spring Symposium on Knowledge Collection from Volunteer Contributors},
    year	= {2005}
}