1. Introduction to the Theory of Functional Differential Equations;Azbelev,1991
2. Theory of linear abstract functional differential equations and applications;Azbelev;Mem. Differential Equations Math. Phys.,1996
3. An Introduction to Nonlinear Boundary Value Problems;Bernfeld,1974
4. A note on the Fredholm property of boundary value problems for linear functional differential equations;Bravyi;Mem. Differential Equations Math. Phys.,2000
5. Optimal conditions for unique solvability of the Cauchy problem for first-order linear functional differential equations;Bravyi;Czechoslovak Math. J.,2002