@article{VMUMM_1989_3_a2,
     author = {Yu. A. Shevchenko},
     title = {On {Vitali's} covering theorem},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {11--14},
     publisher = {mathdoc},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1989_3_a2/}
}