@article{DM_2004_16_3_a6,
     author = {Z. S. Lozhkina},
     title = {On optimal exact coverings of a graph in the class of weakly dense bases},
     journal = {Diskretnaya Matematika},
     pages = {118--140},
     publisher = {mathdoc},
     volume = {16},
     number = {3},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2004_16_3_a6/}
}