Kolomiyets, V. G., and A. I. Mel’nikov. “Random Integral Manifolds of Systems of Differential Equations With Unbounded Operator in a Banach Space”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 50, no. 12, Dec. 1998, pp. 1609–1614, https://umj.imath.kiev.ua/index.php/umj/article/view/4780.