@article{Bibtex/GPOS2012b,
title={Algebraic Entropy, Automorphisms and Sparsity  of  Algebraic Dynamical Systems and Pseudorandom Number Generators},
journal={Mathematics of Computation},
author={Domingo Gomez-Perezand  Alina Ostafeand  Igor E. Shparlinski},
number={83},
year={2014},
pages={1535-1550},
}