%0 Journal Article %A Jozef Bobok %T Twist systems on the interval %J Fundamenta Mathematicae %D 2002 %P 97-117 %V 175 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm175-2-1/ %R 10.4064/fm175-2-1 %G en %F 10_4064_fm175_2_1