Media type: E-Article Title: Logics in Artificial Intelligence: Preferred Answer Sets for Ordered Logic Programs Contributor: Van Nieuwenborgh, Davy; Vermeir, Dirk Published: Springer Berlin Heidelberg, 2002 Published in: Logics in Artificial Intelligence (2002), Seite 432-443 Language: Not determined DOI: 10.1007/3-540-45757-7_36 ISSN: 0302-9743 Origination: Footnote: