DmytrenkoS. O., KyurchevD. V., and PratsiovytyiM. V. “$A_2$-Continued Fraction Representation of Real Numbers and Its Geometry”. Ukrains’kyi Matematychnyi Zhurnal 61, no. 4 (April 25, 2009): 452-463. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3033.