TY - JOUR AU - Gaowen Xi TI - A Hilbert's type inequality with four parameters JO - Filomat PY - 2022 SP - 641 VL - 36 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.2298/FIL2202641X/ DO - 10.2298/FIL2202641X LA - en ID - 10_2298_FIL2202641X ER -