Haroutunian, E. A. ., I. A. . Safaryan, A. R. . Nazaryan, and N. S. . Harutyunyan. “Detection of Heterogeneity in Three-Dimensional Data Sequences: Algorithm and Applications”. Mathematical Problems of Computer Science, vol. 42, Dec. 2021, pp. 63-72, http://mpcs.sci.am/index.php/mpcs/article/view/216.