1. Kozlov R.I., Kozlova O.R. Issledovanie ustoichivosti nelineinykh nepreryvno-diskretnykh modelei ekonomicheskoi dinamiki metodom VFL. I, Izv. RAN. Teoriya i sistemy upravleniya (2), 104-113 (2009).
2. Fridman E. Stability of linear descriptor systems with delay: a Lyapunov-based approach, J. Math. Anal. and Appl. 273 (1), 24-44 (2002).
3. Kozlov R.I., Kozlova O.R. Issledovanie ustoichivosti nelineinykh nepreryvno-diskretnykh modelei ekonomicheskoi dinamiki metodom VFL. II, Izv. RAN. Teoriya i sistemy upravleniya (3), 41-50 (2009).
4. De la Sen M. Total Stability Properties Based on Fixed Point Theory for a Class of Hybrid Dynamic Systems, Hindawi Publ. Corporation Fixed Point Theory and Appl., article 826438 (2009).
5. Simonov P.M. K voprosu ob ustoichivosti sistemy dvukh lineinykh gibridnykh funktsional'no-differentsial'nykh sistem s posledeistviem, Vestn. rossiisk. un-ov. Matem. 25 (131), 299-306 (2020).