A formal representation of normative systems
Subtitle: a defeasible deontic reasoning approach
By: by Young Uk Ryu.
Series: University Microfilms International -- no. 92-25716
Publisher: University Microfilms International
Place of publication: Ann Arbor, MI
Language: eng
Format: Microform
Notes: Thesis (Ph.D.) - The University of Texas at Austin, 1992.