Qin , YonghuiChen , YanpingHuang , Yunqing and Ma , Heping. (2020). Multidomain Legendre-Galerkin Least-Squares Method for Linear Differential Equations with Variable Coefficients.
Numerical Mathematics: Theory, Methods and Applications. 13 (3).
665-688.
doi:10.4208/nmtma.OA-2019-0015