KovalchukL. V. “Semimartingales With Values on Groups and Lie Algebras”. Ukrains’kyi Matematychnyi Zhurnal 45, no. 2 (February 25, 1993): 251–257. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/5806.