Изменения

*[http://www.cs.huji.ac.il/~nati/PAPERS/expander_survey.pdf S. Hoory, N. Linial, A. Wigderson. Expander graphs and their applications. Bulletin of the AMS, vol. 43, Number 4, Oct. 2006, pp.439 561.]

*[ H. Buhrman, P.B. Miltersen, J. Radhakrishnan, S. Venkatesh. Are Bitvectors optimal? SIAM J. Comput., 31(6):1723–1744, 2002.]