RudenkoA. V. (2004). Approximation of Densities of Absolutely Continuous Components of Measures in a Hilbert Space Using the Ornstein-Uhlenbeck Semigroup. Ukrains’kyi Matematychnyi Zhurnal, 56(12), 1654-1664. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/3872