@article{AA_2015_27_2_a1,
     author = {S. V. Astashkin},
     title = {Martingale transforms of {a~Rademacher} sequence in symmetric spaces},
     journal = {Algebra i analiz},
     pages = {20--41},
     publisher = {mathdoc},
     volume = {27},
     number = {2},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2015_27_2_a1/}
}