@article{MZM_2005_77_6_a6,
     author = {V. L. Kreptogorskii},
     title = {Interpolation of {Rational} {Approximation} {Spaces} {Belonging} to the {Besov} {Class}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {877--885},
     publisher = {mathdoc},
     volume = {77},
     number = {6},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2005_77_6_a6/}
}