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@article{JIS_2007__10_6_a2, author = {Khalyavin, Andrey}, title = {The minimal density of a letter in an infinite ternary square-free word is 883/3215}, journal = {Journal of integer sequences}, publisher = {mathdoc}, volume = {10}, number = {6}, year = {2007}, language = {en}, url = {http://geodesic.mathdoc.fr/item/JIS_2007__10_6_a2/} }
Khalyavin, Andrey. The minimal density of a letter in an infinite ternary square-free word is 883/3215. Journal of integer sequences, Tome 10 (2007) no. 6. http://geodesic.mathdoc.fr/item/JIS_2007__10_6_a2/