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.
Falk Bartels, Ana Sokolova, Erik P. de Vink. A hierarchy of probabilistic system types. Theoretical Computer Science, 327(1-2):3-22, 2004. [doi]