Pritula, N. N., Yu. M. Sidorenko, and W. Strampp. 1996. “Nonlinear Integrable Systems Related to the Elliptic lie—baxter Algebra”. Ukrains’kyi Matematychnyi Zhurnal 48 (2), 220-35. https://umj.imath.kiev.ua/index.php/umj/article/view/5350.