@article{NSJOM_2008_38_2a_17,
     author = {M. Ivanovi\'c and I. Pribela and B. Vesin and Z.

 Budimac},
     title = {Multifunctional environment for e-learning purposes},
     journal = {Novi Sad Journal of Mathematics},
     pages = {153-170},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {2008},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2008_38_2a_17/}
}