Yuling Jiao, Yanming Lai, Dingwei Li, Xiliang Lu, Fengru Wang, Yang Wang & Jerry Zhijian Yang. (2022). A Rate of Convergence of Physics Informed Neural Networks for the Linear Second Order Elliptic PDEs.
            <i>Communications in Computational Physics</i>. <i>31</i> (4).
            1272-1295.
         doi:10.4208/cicp.OA-2021-0186