@article{MZM_2000_68_1_a3,
     author = {M. S. Bespalov},
     title = {Permutations of the {Walsh} system that preserve {Lebesgue} constants},
     journal = {Matemati\v{c}eskie zametki},
     pages = {36--48},
     publisher = {mathdoc},
     volume = {68},
     number = {1},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2000_68_1_a3/}
}