1. Geometric ideas in the stability analysis of delay models in biosciences;Niculescu,2007
2. Sur la théorie mathématique des phénomenes héréditaires;Volterra;J Math Pures Et Appl,1928
3. Control of delayed recycling systems with an unstable pole at forward path;Rubio,2012
4. Differential-difference equations;Bellman,1963
5. Stability of time-delay systems;Gu,2003