Tho, H. D., N. T. Thang, N. T. T. Nga, and P. Q. Hoang. “An Algorithm for Improving Algebraic Degree of S-Box Coordinate Boolean Functions Based on Affine Equivalence Transformation”. Journal of Informatics and Mathematical Sciences, vol. 10, no. 1-2, Aug. 2018, pp. 339-50, doi:10.26713/jims.v10i1-2.662.