Xie, B., J. Su, Y. Ge, X. Li, J. Cui, J. Yao, and B. Wang. “Improving Tree-Structured Decoder Training for Code Generation via Mutual Learning”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 16, May 2021, pp. 14121-8, https://ojs.aaai.org/index.php/AAAI/article/view/17662.