%0 Journal Article %A K. Wiertelak %T A note on the remainder term of the prime-number formula for arithmetical progressions %J Commentationes Mathematicae %D 1972 %P 149-157 %V 16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/cm.v16i1.5733/ %R 10.14708/cm.v16i1.5733 %G pl %F 10_14708_cm_v16i1_5733