@article{NSJOM_1996_26_1a_12,
     author = {Ivanovi\'c 

 Mirjana},
     title = {An 

 object-oriented {Hypertext} shell},
     journal = {Novi Sad Journal of Mathematics},
     pages = {135-153},
     year = {1996},
     volume = {26},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1996_26_1a_12/}
}