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]