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.
Wolfgang Hackbusch, Steffen Börm. Data-sparse Approximation by Adaptive H:::2:::-Matrices. Computing, 69(1):1-35, 2002. [doi]