DmytrenkoS. O., KyurchevD. V. and PratsiovytyiM. V. (2009) “$A_2$-continued fraction representation of real numbers and its geometry”, Ukrains’kyi Matematychnyi Zhurnal, 61(4), pp. 452-463. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3033 (Accessed: 27July2024).