Universal Wiser Publisher 2022. Retraction Note to "Numerical Solution to Unsteady One-Dimensional Convection-Diffusion Problems Using Compact Difference Schemes Combined with Runge-Kutta Methods" [Contemporary Mathematics, Volume 2 Issue 4 (2021) 399-408]. Contemporary Mathematics. 3, 3 (Jul. 2022), 326. DOI:https://doi.org/10.37256/cm.3320221691.