Statkevych, V.M. (2012) “Investigation of solutions of boundary-value problems with essentially infinite-dimensional elliptic operator”,
Ukrains’kyi Matematychnyi Zhurnal, 64(2), pp. 229–236. Available at:
https://umj.imath.kiev.ua/index.php/umj/article/view/2569 (Accessed: 7 April 2025).