PodkolzinG. B., and ChapovskyY. “Construction of Continuous Cocycles for the Bicrossed Product of Locally Compact Groups”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 61, no. 2, Feb. 2009, pp. 243-60, https://umj.imath.kiev.ua/index.php/umj/article/view/3016.