KalyuzhnyiA. A., PodkolzinG. B., and ChapovskyYu. “Finding Cocycles in the Bicrossed Product Construction for Lie Groups”. Ukrains’kyi Matematychnyi Zhurnal 59, no. 11 (November 25, 2007): 1510–1522. Accessed October 6, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3407.