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.
Jin-yi Cai. S::2:::::p::: is subset of ZPP:::NP:::. J. Comput. Syst. Sci., 73(1):25-35, 2007. [doi]
Abstract is missing.