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.
T. R. Girill, Clement H. Luk. Hierarchical Search Support for Hypertext On-Line Documentation. International Journal of Man-Machine Studies, 36(4):571-585, 1992.
Abstract is missing.