@article{DAN_1983_272_5_a1,
     author = {V. F. Babenko},
     title = {Inequalities for rearrangements of differentiable periodic},
     journal = {Doklady Akademii Nauk},
     pages = {1038--1041},
     publisher = {mathdoc},
     volume = {272},
     number = {5},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_272_5_a1/}
}