@Article{BL+86, Author = "Boyer, R. and Lusk E.L. and McCune, W.W. and Overbeek, R. and Stickel, M.E. and Wos, L.", Year = "1986", Title = "{Set Theory in First-Order Logic: Clauses for Godel's Axioms}", Journal = "Journal of Automated Reasoning", Volume = "2", Number = "3", Pages = "287-327", Comment = "TPTPRef" }