Zorii, N.V. (2004) “Theory of Potential with Respect to Consistent Kernels; Theorem on Completeness and Sequences of Potentials”, Ukrains’kyi Matematychnyi Zhurnal, 56(11), pp. 1513–1526. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3862 (Accessed: 7 April 2025).