共 8 条
- [1] Koplatadze RG., 1982, DIFF EQUAT+, V18, P1463
- [3] Ladas G., 1982, FUNKC EKVACIOJ-SER I, V25, P105
- [4] Ladas G., 1972, DELAY FUNCTIONAL DIF
- [5] Ladas G., 1979, APPL ANAL, V9, P93, DOI [10.1080/00036817908839256, DOI 10.1080/00036817908839256]