1. Hazewinkel, C.I. and Kalman, R.E., Lect. Notes Econ. and Math. Syst. Theory, 1976, vol. 131, pp. 48–60.
2. Vainshtein, F.S. and Osetinskii, N.I., Itogi Nauki i Tekhniki. Sovr. Matematika i Ee Prilozheniya: Tematicheskie Obzory, 1995, vol. 29, pp. 101–120.
3. Vainstein, F.S. and Osetinskii, N.I., Differents. Uravn., 2004, vol. 40, no.11, pp. 1771–1779.
4. Osetinskii, N.I., in Teoriya slozhnykh sistem i metody ikh modelirovaniya (Theory of Complex Systems and Methods for Their Modeling), Moscow, 1988, pp. 58–76.
5. Tannenbaum, A., Linear Algebra and Appl., 1983, vol. 50, pp. 527–544.