%0 Journal Article %A Łenski, Włodzimierz %A Topolewska, Maria %T On the rate of strong summability of double Fourier series %J Mathematica Bohemica %D 1998 %P 337-363 %V 123 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.1998.125967/ %R 10.21136/MB.1998.125967 %G en %F 10_21136_MB_1998_125967