%0 Journal Article %A B.N. Prasad %A U.N. Singh %T Corrigenda and Addenda. On the strong summability of the derived Fourier series and ist conjugate series. Math. Zeitschr. Vol. 56, pp. 280-288. %J Mathematische Zeitschrift %D 1952 %P 481-482 %V 57 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1952__57_251809/ %F MZ_1952__57_251809