%0 Journal Article %A Pedrycz, W. %A Vukovich, G. %T Relations of granular worlds %J International Journal of Applied Mathematics and Computer Science %D 2002 %P 347-357 %V 12 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IJAMCS_2002_12_3_a3/ %G en %F IJAMCS_2002_12_3_a3