N. Hu and L.-M. Xia, “Vertex Operator Representations of Type $C_l^{(1)}$ and Product-Sum Identities”, Ukr. Mat. Zhurn., vol. 66, no. 2, pp. 226–243, Feb. 2014, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2126