%0 Journal Article %A Ivanović Mirjana %T An object-oriented Hypertext shell %J Novi Sad Journal of Mathematics %D 1996 %P 135-153 %V 26 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/NSJOM_1996_26_1a_12/ %F NSJOM_1996_26_1a_12