1. Graef, J., Koplatadze, R., Kvinikadze, G.: Nonlinear functional differential equations with Properties A and B. J. Math. Anal. Appl. 306, 136–160 (2005)
2. Koplatadze, R.: On oscillatory properties of solutions of functional differential equations. Mem. Differ. Equ. Math. Phys. 3, 3–179 (1994)
3. Koplatadze, R.: On oscillatory properties of solutions of generalized Emden-Fowler type differential equations. Proc. A. Razmadze Math. Inst. 145, 117–121 (2007)
4. Koplatadze, R.: Quasi-linear functional differential equations with Property A. J. Math. Anal. Appl. 330, 483–510 (2007)
5. Koplatadze, R.: On Asymptotic behavior of solutions of almost linear and essentially nonlinear differential equations. Nonlinear Anal. Theory Methods Appl. 71(12), 396–400 (2009)