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.
Christian Liebchen, Gregor Wünsch. The zoo of tree spanner problems. Discrete Applied Mathematics, 156(5):569-587, 2008. [doi]
Abstract is missing.