1. OTTER 2.0 Users Guide;McCune,1990
2. What's New in OTTER 2.2;McCune,1991
3. Another single law for groups;Neumann;Bull. Australian Math. Soc.,1981
4. Equational logic;Meredith;Notre Dame J. Formal Logic,1968
5. Applications of automated deduction to the search for single axioms for exponent groups;McCune,1992