Yurchenko, I. V., and L. I. Yasinskaya. 1995. “Asymptotic Stability of Solutions of Systems of Stochastic Differential Equations in the Critical Case”. Ukrains’kyi Matematychnyi Zhurnal 47 (11): 1558–1565. https://umj.imath.kiev.ua/index.php/umj/article/view/5547.