1. J. Wu, Theory and Applications of Partial Functional Differential Equations Theory and Applications of Partial Functional Differential Equations (Springer, Berlin, 1996).
2. Delay Differential Equations and Applications, Ed. by O. Arino et al. (Springer, Berlin, 2006).
3. S. A. Kashchenko, “Asymptotics of periodic solutions of the generalized Hutchinson equation,” in Research into Stability and Oscillation Theory (Yaroslav. Gos. Univ., Yaroslavl, 1981) [in Russian].
4. S. A. Kashchenko, “Asymptotics of solutions of the generalized Hutchinson equation,” Model. Anal. Inf. Sist. 19(3), 32–62 (2012).
5. S. Kakutani and L. Markus, “On the nonlinear difference-differential equation,” Contributions to the Theory of Nonlinear Oscillations (Princeton Univ. Press, Princeton, 1958), Vol. 4, pp. 1–18.