@article{PDM_2009_10_a26,
     author = {I. V. Smith},
     title = {Software implementation of closure algorithms for the basic {DP-model} of computer systems with discretionary access control},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {54--55},
     publisher = {mathdoc},
     number = {10},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2009_10_a26/}
}