Dmytrenko SO, Kyurchev DV, Pratsiovytyi MV. $A_2$-continued fraction representation of real numbers and its geometry. Ukr. Mat. Zhurn. [Internet]. 2009Apr.25 [cited 2024Apr.20];61(4):452-63. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3033