TY - JOUR AU - Miloš Arsenović AU - Miodrag Mateljević TI - Modulus of continuity of normal derivative of a harmonic functions at a boundary point JO - Filomat PY - 2023 SP - 8667 VL - 37 IS - 25 UR - http://geodesic.mathdoc.fr/articles/10.2298/FIL2325667A/ DO - 10.2298/FIL2325667A LA - en ID - 10_2298_FIL2325667A ER -