Coefficients Characterization of Entire Harmonic Functions in Terms of Norm of Gradients at Origin in R^n, n≥ 3. Eur. J. Pure Appl. Math. [Internet]. 2020 Apr. 29 [cited 2024 Dec. 22];13(2):258-6. Available from: https://www.ejpam.com/index.php/ejpam/article/view/3636