@article{IVM_1971_10_a9,
     author = {B. K. Khlybov},
     title = {The $p$-density of sets on the line},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {70--75},
     publisher = {mathdoc},
     number = {10},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1971_10_a9/}
}