Chattouh, A. and Saoudi, K. 2021. Error analysis of Legendre-Galerkin spectral method for a parabolic equation with Dirichlet-Type non-local boundary conditions. Mathematical Modelling and Analysis. 26, 2 (May 2021), 287-303. DOI:https://doi.org/10.3846/mma.2021.12865.