@article{MZM_2008_84_4_a4,
     author = {R. B. Beshimov},
     title = {Nonincrease of {Density} and {Weak} {Density} under {Weakly} {Normal} {Functors}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {527--531},
     publisher = {mathdoc},
     volume = {84},
     number = {4},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2008_84_4_a4/}
}