TY - JOUR AU - Kórus, Péter TI - Necessary and sufficient conditions for the $L^1$-convergence of double Fourier series JO - Czechoslovak Mathematical Journal PY - 2018 SP - 987 EP - 996 VL - 68 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2018.0043-17/ DO - 10.21136/CMJ.2018.0043-17 LA - en ID - 10_21136_CMJ_2018_0043_17 ER -