Gui, T., Q. Zhang, L. Zhao, Y. Lin, M. Peng, J. Gong, and X. Huang. “Long Short-Term Memory With Dynamic Skip Connections”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 33, no. 01, July 2019, pp. 6481-8, doi:10.1609/aaai.v33i01.33016481.