共 50 条
- [47] ON PERIODIC SOLUTIONS OF SYSTEMS OF LINEAR DIFFERENTIAL DELAY EQUATIONS DOPOVIDI AKADEMII NAUK UKRAINSKOI RSR SERIYA A-FIZIKO-MATEMATICHNI TA TECHNICHNI NAUKI, 1970, (03): : 217 - &
- [50] Stability for composite singular systems for differential equations with a delay Circ Syst Signal Process, 5 (573-580):