@article{MABA_2011_25_5_a8,
     author = {S. Radovic},
     title = {An {Innovative} {Approach} in {Teaching;} {Mathematics} in {Elementary} and {High} {Schools} by {Using} the {Software} {Package} {GeoGebra}},
     journal = {Mathematica balkanica},
     pages = {527},
     publisher = {mathdoc},
     volume = {25},
     number = {5},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/MABA_2011_25_5_a8/}
}