“First so(2)-Relative Cohomology of Vec(R) Acting on the Space of Bilinear Bidifferential Operators”, JPRM, vol. 22, no. 1, pp. 120–131, Mar. 2026, Accessed: Mar. 16, 2026. [Online]. Available: https://jprm.sms.edu.pk/index.php/jprm/article/view/317