1. Asymptotic Behavior and Stability Problems in Ordinary Differential Equations;Cesari,1963
2. Theory of Ordinary Differential Equations;Coddington,1955
3. On the asymptotic behavior of solutions of a class of differential equations;Hale;Contrib. Diff. Eqs.,1963
4. Asymptotic behavior of the solutions of an nth order non-homogeneous ordinary differential equations;Hallam;Trans. Am. Mathm. Soc.,1966
5. Ordinary Differential Equations;Hartman,1964