Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Andrew J. Ko, Brad A. Myers. Extracting and answering why and why not questions about Java program output. ACM Transactions on Software Engineering Methodology, 20(2), 2010. [doi]
Abstract is missing.