@article{DAN_1968_179_2_a11,
     author = {Ho\`ang Tụy},
     title = {Linear inequalities},
     journal = {Doklady Akademii Nauk},
     pages = {293--296},
     publisher = {mathdoc},
     volume = {179},
     number = {2},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_179_2_a11/}
}