V. P. Tikhonov, “On relatedness theorems for equations with retarded argument”, Differ. Uravn., 24:2 (1988), 240–250; Differ. Equ., 24:2 (1988), 181–189
1983
2.
P. P. Zabreiko, V. P. Tikhonov, “Determining equations and the relatedness principle”, Sibirsk. Mat. Zh., 24:1 (1983), 79–88; Siberian Math. J., 24:1 (1983), 65–72
Contact us: