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.
Birgit Jenner, Bernd Kirsig, Klaus-Jörn Lange. The Logarithmic Alternation Hierarchy Collapses: A /sum^/calL_2=APi^/calL_2. Inf. Comput., 80(3):269-287, March 1989.
Abstract is missing.