@article{DAN_1981_256_1_a1,
     author = {Yu. A. Brudnyi and N. Ya. Kruglyak},
     title = {Functors of real interpolation},
     journal = {Doklady Akademii Nauk},
     pages = {14--17},
     publisher = {mathdoc},
     volume = {256},
     number = {1},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_256_1_a1/}
}