1. V. N. Kublanovskaya, “Rank division algorithms and their applications,” J. Numer. Algebra Appl., 2, 198–213 (1992).
2. V. N. Kublanovskaya, “Methods and algorithms for solving spectral problems for polynomial and rational matrices,” Zap. Nauchn. Semin. POMI, 238, 3–329 (1997).
3. F. R. Gantmakher, The Theory of Matrices [in Russian], Nauka, Moscow (1988).