D. Bykov, “Sigma Models with Complex, Graded and $\eta$-Deformed Target Spaces”, ЭЧАЯ, 49:5 (2018), 1492–1492 ; D. Bykov, “Sigma Models with Complex, Graded and $\eta$-Deformed Target Spaces”, Phys. Part. Nucl., 49:5 (2018), 963–965
F. Delduc, B. Hoare, T. Kameyama, M. Magro, “Combining the bi-Yang-Baxter deformation, the Wess-Zumino term and TsT transformations in one integrable σ-model”, J. High Energ. Phys., 2017:10 (2017)