1. Oscillation criteria for second-order delay differential equations;Dzurina;Appl. Math. Comput.,2003
2. On the oscillation of system of nonlinear differential equations;Mirzov;Diferencia Uravnenija,1973
3. On some analogs of Sturm’s and Kneser’s theorems for nonlinear systems;Mirzov;J. Math. Anal. Appl.,1976
4. On the oscillation of solutions of a system of differential equations;Mirzov;Mat. Zametki,1978
5. A half-linear second order differential equation;Elbert;Colloquia Math. Soc. Janos Bolyai, Qual. Theor. Differen. Equat.,1979