Alex Pelin, Jean H. Gallier. Solving Word Problems in Free Algebras Using Complexity Functions. In Robert E. Shostak, editor, 7th International Conference on Automated Deduction, Napa, California, USA, May 14-16, 1984, Proceedings. Volume 170 of Lecture Notes in Computer Science, pages 476-495, Springer, 1984.
Abstract is missing.