@article{Veselovskaya_2018, title={On the approximation and growth of entire harmonic functions in $R_n$}, volume={70}, url={https://umj.imath.kiev.ua/index.php/umj/article/view/1568}, abstractNote={We establish a criterion of extendability of harmonic function in a ball of the $n$-dimensional space to harmonic entire function and study the growth of entire harmonic function in terms of the best approximation of these function by harmonic polynomials.}, number={4}, journal={Ukrains’kyi Matematychnyi Zhurnal}, author={Veselovskaya, O. V.}, year={2018}, month={Apr.}, pages={464-470} }