Show 5 5 10 15 20 50 100 250 Sort by year (new to old) Actions Save this search Download search results Subscribe to news feed Your filters: cql: keyword exact "fuzzy relation equations" Add to list Journal Article A1 Linear optimization with bipolar max-min constraints Steven Freson (UGent) , Bernard De Baets (UGent) and Hans De Meyer (UGent) (2013) INFORMATION SCIENCES. 234. p.3-15