TY - JOUR AU - Piotr Szuca TI - SharkovskiÄ­'s theorem holds for some discontinuous functions JO - Fundamenta Mathematicae PY - 2003 SP - 27 EP - 41 VL - 179 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm179-1-3/ DO - 10.4064/fm179-1-3 LA - en ID - 10_4064_fm179_1_3 ER -