%0 Journal Article %A Jozef Bobok %A Milan Kuchta %T X-minimal patterns and a generalization of SharkovskiÄ­'s theorem %J Fundamenta Mathematicae %D 1998 %P 33-66 %V 156 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-156-1-33-66/ %R 10.4064/fm-156-1-33-66 %G en %F 10_4064_fm_156_1_33_66