@article{DAN_1971_200_3_a1,
     author = {V. V. Aseev},
     title = {On a modulus property},
     journal = {Doklady Akademii Nauk},
     pages = {513--514},
     publisher = {mathdoc},
     volume = {200},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_200_3_a1/}
}