@article{PDML_1985___2B_21_0, author = {Berstel, Jean}, title = {Some Recent Results on Squarefree Words}, journal = {Publications du D\'epartement de math\'ematiques (Lyon)}, year = {1985}, pages = {21-36}, mrnumber = {848821}, zbl = {0605.03015}, language = {en}, url = {http://dml.mathdoc.fr/item/PDML_1985___2B_21_0} }
Berstel, Jean. Some Recent Results on Squarefree Words. Publications du Département de mathématiques (Lyon), (1985), pp. 21-36. http://gdmltest.u-ga.fr/item/PDML_1985___2B_21_0/
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