Litovchenko, V.A. (2002) “Complete Solvability of the Cauchy Problem for Petrovskii Parabolic Equations in S-Type Spaces”, Ukrains’kyi Matematychnyi Zhurnal, 54(11), pp. 1467–1479. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4185 (Accessed: 5 December 2025).