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.
Jeffrey M. Thompson, Mats Per Erik Heimdahl. Structuring product family requirements for n-dimensional and hierarchical product lines. Requir. Eng., 8(1):42-54, 2003. [doi]