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.
Etsuro Moriya. A Grammatical Characterization of Alternating Pushdown Automata. Theoretical Computer Science, 67(1):75-85, 1989.