He, X., S. Yang, G. Li, H. Li, H. Chang, and Y. Yu. “Non-Local Context Encoder: Robust Biomedical Image Segmentation Against Adversarial Attacks”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 33, no. 01, July 2019, pp. 8417-24, doi:10.1609/aaai.v33i01.33018417.