Trevor Clokie, Daniel Gabric, Jeffrey Shallit. Circularly Squarefree Words and Unbordered Conjugates: A New Approach. In Robert Mercas, Daniel Reidenbach, editors, Combinatorics on Words - 12th International Conference, WORDS 2019, Loughborough, UK, September 9-13, 2019, Proceedings. Volume 11682 of Lecture Notes in Computer Science, pages 133-144, Springer, 2019. [doi]
Abstract is missing.