1. More on linear differential systems with small delays;Arino;J. Differential Equations,2001
2. Linear differential systems with small delays;Driver;J. Differential Equations,1976
3. Existence of periodic solutions of one-dimensional differential-delay equations;Furumochi;Tohoku Math. J.,1978
4. Interaction between oscillations and global asymptotic stability in delay differential equations;Györi;Differential Integral Equations,1990
5. Stability criteria for linear delay differential equations;Györi;Differential Integral Equations,1997