Yaoyu Zhang, Yuqing Li, Zhongwang Zhang, Tao Luo & Zhi-Qin John Xu. (2022). Embedding Principle: A Hierarchical Structure of Loss Landscape of Deep Neural Networks.
            <i>Journal of Machine Learning</i>. <i>1</i> (1).
            60-113.
         doi:10.4208/jml.220108