%0 Journal Article %A J. Topp %A W. Ulatowski %T On functions which sum to zero on semicycles %J Applicationes Mathematicae %D 1987 %P 611-617 %V 19 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-19-3-4-611-617/ %R 10.4064/am-19-3-4-611-617 %G en %F 10_4064_am_19_3_4_611_617