TY - JOUR T1 - Filtering retrenchments into refinements JO - Proceedings 4th IEEE International Conference on Software Engineering and Formal Methods Sefm 2006 PY - 2006/12/01 AU - Banach R AU - Derrick J ED - DO - DOI: 10.1109/SEFM.2006.17 SP - 60 EP - 69 Y2 - 2025/11/27 ER -