1. Yu. N. Andreev, Control of Finite-Dimensional Linear Objects (Nauka, Moscow, 1976) [in Russian].
2. J. O’Reilly, Observers for Linear Systems (Academic, London, 1983).
3. E. M. Smagina, Questions of Analysis of Linear Multidimensional Objects with the Use of the Notion of the Zero of a System (Tomsk. Univ., Tomsk, 1990) [in Russian].
4. H. H. Rosenbrock, “The Zeros of a System,” Int. J. Control 18(2), 297–299 (1973).
5. H. Kimura, “Pole Assignment by Gain Output Feedback,” IEEE Trans. Autom. Control 20, 509–516 (1975).