Jui-Yi Kao, Narad Rampersad, Jeffrey Shallit, Manuel Silva. Words avoiding repetitions in arithmetic progressions. Theoretical Computer Science, 391(1-2):126-137, 2008. [doi]
@article{KaoRSS08, title = {Words avoiding repetitions in arithmetic progressions}, author = {Jui-Yi Kao and Narad Rampersad and Jeffrey Shallit and Manuel Silva}, year = {2008}, doi = {10.1016/j.tcs.2007.10.039}, url = {http://dx.doi.org/10.1016/j.tcs.2007.10.039}, researchr = {https://researchr.org/publication/KaoRSS08}, cites = {0}, citedby = {0}, journal = {Theoretical Computer Science}, volume = {391}, number = {1-2}, pages = {126-137}, }