Gapoyan, N. DUALITY IN SPACES OF FUNCTIONS PLURIHARMONIC IN THE UNIT BALL IN $\mathbb{C}^n$. Proc. YSU A: Phys. Math. Sci. 2016, 50 (2 (240), 15-21. https://doi.org/10.46991/PSYU:A/2016.50.2.015.