@article{DA_2006_13_4_a6,
     author = {A. V. Chashkin},
     title = {On the complexity of a~cyclic shift of a~set of real numbers},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {89--92},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2006_13_4_a6/}
}