@article{VMUMM_1987_5_a17,
     author = {Buǐ Ta Long},
     title = {A constant in an embedding theorem},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {84--87},
     publisher = {mathdoc},
     number = {5},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1987_5_a17/}
}