DaP. G. (1997) “Regularity results for Kolmogorov equations in $L^2 (H, μ)$ spaces and applications”, Ukrains’kyi Matematychnyi Zhurnal, 49(3), pp. 448–457. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5017 (Accessed: 24November2024).