@Article{SS98, Author = "Sutcliffe, G. and Suttner, C.B.", Year = "1998", Title = "{The TPTP Problem Library: CNF Release v1.2.1}", Journal = "Journal of Automated Reasoning", Volume = "21", Number = "2", Pages = "177-203", Comment = "REAL,ATPProgress,SystemOnTPTP,TPTPCite" }