1. A survey of software refactoring;Mens;IEEE Transactions on Software Engineering,2004
2. Monden A Nakae D Kamiya T Sato S Matsumoto K Software quality analysis by code clones in industrial legacy software
3. Shatnawi R Li W An investigation of bad smells in object-oriented design 161 165
4. Kitchenham B Procedures for performing systematic reviews 2004 1 28