@article{DAN_1969_186_2_a3,
     author = {D. P. Mil'man},
     title = {Sublinear extensions of functionals},
     journal = {Doklady Akademii Nauk},
     pages = {257--260},
     publisher = {mathdoc},
     volume = {186},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_186_2_a3/}
}