Gorbachuk, V.M. (2008) “On solutions of parabolic and elliptic type differential equations on $(-\infty, \infty)$ in a Banach space”, Methods of Functional Analysis and Topology, 14(2), pp. 177–183. Available at: https://zen.imath.kiev.ua/index.php/mfat/article/view/381 (Accessed: 18 December 2025).