Loan, Nguyen Thi Ha, and Nguyen Hong Ha. “BRST Charge Operator for Generalized Deformed SU(2) Algebra”. Communications in Physics 18, no. 1 (July 18, 2008): 23–26. Accessed October 19, 2021. https://vjs.ac.vn/index.php/cip/article/view/10687.