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: parent exact "DUKE MATHEMATICAL JOURNAL" Add to list Journal Article A1 open access Trees, contraction groups, and Moufang sets Pierre-Emmanuel Caprace and Tom De Medts (UGent) (2013) DUKE MATHEMATICAL JOURNAL. 162(13). p.2413-2449