Hafedh Mili, Imen Benzarti, Amel El Kharraz, Ghizlane El Boussaidi, Yann-Gaël Guéhéneuc, and Petko Valtchev. Discovering Reusable Functional Features in Legacy Object-oriented Systems. Transactions on Software Engineering (TSE), 49(7):3827--3856, July 2023. Note: 29 pages. [Text ] Keyword(s): Topic: Requirements and features, Venue: TSE.