Asif, M. M. A., Ahmad, M. I., Benner, P., Feng, L., & Stykel, T. (2021). Implicit Higher-Order Moment Matching Technique for Model Reduction of Quadratic-bilinear Systems. Journal of the Franklin Institute, 358(3), 2015-2038. doi:10.1016/j.jfranklin.2020.11.012.