| |
| 1975 | ||
|---|---|---|
| 2 | J. C. Lillo: Almost Periodic Perturbations of nth-Order Differential-Difference Equations. Mathematical Systems Theory 8(3): 207-224 (1975) | |
| 1971 | ||
| 1 | J. C. Lillo: The Green's Function for nth-Order Periodic Differential-Difference Equations. Mathematical Systems Theory 5(1): 13-19 (1971) | |