@book{ Solr-3010624, title = {Defeasible deontic logic}, series = {Synthese library}, editor = {Donald Nute and Xiaochang Yu --}, editor = {John F. Horty --}, editor = {Marvin Belzer and Barry Loewer --}, editor = {Lennart Aqvist --}, editor = {Leendert W. N. van der Torre and Yao-Hua Tan --}, editor = {Y. U. Ryu and R. M. Lee --}, editor = {Michael Morreau --}, editor = {Nicholas Asher and Daniel Bonevac --}, editor = {Robert C. Koons and T. K. Seung --}, editor = {Henry Prakken and Marek Sergot --}, editor = {Lamber Royakkers and Frank Dignum --}, editor = {Donald Nute --}, editor = {Jose Carmo and Andrew J. I. Jones --}, editor = {R. P. Loui}, editor = {Nute, Donald, 1947-}, address = {Dordrecht ; Boston}, publisher = {Kluwer Academic}, year = {1997}, pages = {354}, }