Shamoyan R, Bashmakova M. ON SHARP RESULTS ON COEFFICIENT MULTIPLIERS OF HARMONIC FUNCTION SPACES OF SEVERAL VARIABLES AND RELATED PROBLEMS. Mat. Bilt. [Internet]. 2026 Aug. 15 [cited 2026 Aug. 18];49(2):120-4. Available from: https://bilten.smm.org.mk/index.php/bilten/article/view/1971