@article {IOPORT.05750992,
    author       = {Drabent, Wlodzimierz and Maluszynski, Jan},
    title        = {Hybrid rules with well-founded semantics.},
    year         = {2009},
    journal      = {Computing Research Repository (CoRR)},
    volume       = {2009},
    pages        = {Article No. 0906.3815},
    publisher    = {Association for Computing Machinery, New York, NY; Cornell University, Ithaka, NY},
    identifier   = {05750992},
}