Lina Wang, Qian Tong, Lijun Yi & Mingzhu Zhang. (2023). Legendre-Gauss-Radau Spectral Collocation Method for Nonlinear Second-Order Initial Value Problems with Applications to Wave Equations.
            <i>Journal of Computational Mathematics</i>. <i>42</i> (1).
            217-247.
         doi:10.4208/jcm.2203-m2021-0244