TY - JOUR AU - Zdzisław Denkowski TI - An example of a continuous function without the usual, the approximative and the distributional derivative JO - Annales Polonici Mathematici PY - 1980 SP - 169 EP - 180 VL - 38 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-38-2-169-180/ DO - 10.4064/ap-38-2-169-180 LA - en ID - 10_4064_ap_38_2_169_180 ER -