KahtanAbdulrawf A. A., SathishKumar C., SharathG., and VasukiK. R. 2010. “On a Continued Fraction of Order Twelve”. Ukrains’kyi Matematychnyi Zhurnal 62 (12), 1609 -19. https://umj.imath.kiev.ua/index.php/umj/article/view/2986.