@article{UM_1997__5_4_a0,
     author = {Plch, Roman},
     title = {Internet a st\v{r}edn{\'\i} \v{s}koly (4)},
     journal = {U\v{c}itel matematiky},
     pages = {193--203},
     publisher = {mathdoc},
     volume = {05},
     number = {4},
     year = {1997},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_1997__5_4_a0/}
}