1. Use cases–yesterday, today, and tomorrow;Jacobson;Softw. Syst. Model,2004
2. Deriving requirements model from textual use cases;Sawant,2014
3. Estimating software development effort based on use cases: experiences from industry;Anda,2001
4. Effort estimation of use cases for incremental large-scale software development;Mohagheghi,2005
5. Estimating software maintenance effort from use cases: an industrial case study;Ku;IEEE Int. Conf. Softw. Mainte., ICSM,2011