%0 Journal Article %A Ustina, Fred %T Convergence of the Hausdorff Means ofDouble Fourier Series* %J Canadian mathematical bulletin %D 1968 %P 585-591 %V 11 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-070-5/ %R 10.4153/CMB-1968-070-5 %F 10_4153_CMB_1968_070_5