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.
J. Christopher Maloney. Content: Covariation, control and contingency. Synthese, 100(2):241-290, 1994. [doi]
Abstract is missing.