@article{PDMA_2012_5_a36,
     author = {D. N. Kolegov and B. S. Hasanov},
     title = {{\textquotedblleft}Network security architectures fundamentals{\textquotedblright} laboratory practice in {Cisco} {Packet} {Tracer}},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {71--73},
     year = {2012},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2012_5_a36/}
}