Andreieva, D. N., and S. Y. Ignatovich. “On Constructing Single-Input Non-Autonomous Systems of Full Rank”. Visnyk of V. N. Karazin Kharkiv National University. Ser. Mathematics, Applied Mathematics and Mechanics, Vol. 88, Dec. 2018, pp. 35-43, doi:10.26565/2221-5646-2018-88-04.