Zhukova, Galina, 		Zhukov, Alexey, 		Smetanin, Yuri, AND 		Ulyanov, Mikhail.
" The Method of Estimating the Period of a Symbolic Periodic Sequence with Noise, Based on the Sub-Words Positions in the Sequence" <em>Modern Information Technologies and IT-Education</em> [Online], Volume 16 Number 1 (25 May 2020)