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: keyword exact "Ordered semigroup" Add to list Journal Article A1 open access A note on the representation theorem for nullnorms on bounded lattices Zhudeng Wang, Yao Ouyang, Hua-Peng Zhang and Bernard De Baets (UGent) (2023) FUZZY SETS AND SYSTEMS. 472.