Choosuwan, P. and Jitman, S. 2020. Self-dual codes over $\mathbb{F}_{q}+u\mathbb{F}_{q}+u^2\mathbb{F}_{q}$ and applications. Journal of Algebra Combinatorics Discrete Structures and Applications. 7, 3 (Sep. 2020), 209–227. DOI:https://doi.org/10.13069/jacodesmath.784982.