@article{MZM_1976_20_2_a8,
     author = {V. A. Rodin},
     title = {The {Hardy-Littlewood} theorem for the cosine series in a symmetric space},
     journal = {Matemati\v{c}eskie zametki},
     pages = {241--246},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1976_20_2_a8/}
}