A cyclic binary morphism avoiding Abelian fourth powers.

James D. Currie Ali Aberkane A cyclic binary morphism avoiding Abelian fourth powers. 44-52 2009 410 Theor. Comput. Sci. 1 http://dx.doi.org/10.1016/j.tcs.2008.09.027 db/journals/tcs/tcs410.html#CurrieA09