References
- Agarwal , R. P. 1992 . Difference Equations and Inequalities New York : Marcel Dekker .
- Bohner , M. and Peterson , A. 2001 . Dynamic Equations on Time Scales: an Introduction with Applications Boston : Birkhäuser .
- Kelley , W. and Peterson , A. 2001 . Difference Equations: An Introduction with Applications San Diego : Harcourt Academic Press .
- Akin , E. , Erbe , L. , Peterson , A. and Kaymakçalan , B. 2001 . “ Oscillation results for a dynamic equation on a time scale ” . In J. Differ. Equations Appl. in press