Phan Minh Dung Phan Minh Thang Modular Argumentation For Modelling Legal Doctrines in Common Law of Contract. 108-117 2008 JURIX http://dx.doi.org/10.3233/978-1-58603-952-3-108 conf/jurix/2008 db/conf/jurix/jurix2008.html#DungT08