M. . Pratsiovytyi, Y. . Goncharenko, I. . Lysenko, and S. . Ratushniak, “ Finite $A_2$-continued fractions in the problems of rational approximations of real numbers: ”, Ukr. Mat. Zhurn., vol. 75, no. 6, pp. 849–858, Jun. 2023, doi: 10.37863/umzh.v75i6.7413.