1. Oscillation Theory of Differential Equations with Deviating Arguments;Ladde,1987
2. Oscillation Theory of Delay Differential Equations with Applications;Gyori,1991
3. Oscillation Theory for Functional Differential Equations;Erbe,1995
4. Sharp conditions for oscillations caused by delay;Ladas;Applicable Analysis,1979
5. Oscillation and nonoscillation criteria for delay differential equations;Elbert,1995