TY - JOUR AU - J. Topp AU - W. Ulatowski TI - On functions which sum to zero on semicycles JO - Applicationes Mathematicae PY - 1987 SP - 611 EP - 617 VL - 19 IS - 3-4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-19-3-4-611-617/ DO - 10.4064/am-19-3-4-611-617 LA - en ID - 10_4064_am_19_3_4_611_617 ER -