On the number of Sudoku squares.

MLA

Berend, D. “On the Number of Sudoku Squares.” Discrete Mathematics, vol. 341, no. 11, Nov. 2018, pp. 3241–48. EBSCOhost, https://doi.org/10.1016/j.disc.2018.08.005.

APA

Berend, D. (2018). On the number of Sudoku squares. Discrete Mathematics, 341(11), 3241–3248. https://doi.org/10.1016/j.disc.2018.08.005

Chicago

Berend, D. 2018. “On the Number of Sudoku Squares.” Discrete Mathematics 341 (11): 3241–48. doi:10.1016/j.disc.2018.08.005.