Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author exact ECB497A2-8822-11E6-BE4C-FF3FB5D1D7B1 or (type any "bookEditor journalEditor issueEdi... cql: keyword exact "first-order" Add to list Conference Paper C1 The Manchester twins : conflicts between directed obligations Stef Frijters and Thijs De Coninck (UGent) (2021) Deontic logic and normative systems : 15th international conference, DEON 2020/2021. p.166-182