Harnchoowong, A. and Somboonkulavudi, C. (2014) “A Ring of Pythagorean Triples over Quadratic Fields”, Ukrains’kyi Matematychnyi Zhurnal, 66(1), pp. 135–139. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/2117 (Accessed: 24April2024).