Numerical Solution of Retarded Initial Value Problems: Local and Global Error and Stepsize Control. Herbert Arndt (1984) Numerische Mathematik
Numerical solution of some iterative differential equation Jiří Kobza (1998) Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
Numerical stability test of neutral delay differential equations. Wang, Z.H. (2008) Mathematical Problems in Engineering
Numerical Treatment of Delay Differential Equations by Hermite Interpolation. H.J. Pesch, H.J. Oberle (1981) Numerische Mathematik