Hân N Đình, Vinh HN, Huy PT, Vân Đỗ L. An algorithm for testing whether a regular language is a code. JCC [Internet]. 2012 Apr. 18 [cited 2024 Nov. 23];27(1):1-8. Available from: https://vjs.ac.vn/index.php/jcc/article/view/457