@article{DAN_1966_170_3_a6,
     author = {Yu. I. Petunin},
     title = {Relationship among three {Banach} spaces},
     journal = {Doklady Akademii Nauk},
     pages = {516--519},
     publisher = {mathdoc},
     volume = {170},
     number = {3},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_170_3_a6/}
}