1. Boundary Value Problems for Higher Order Differential Equations;Agarwal,1986
2. Difference Equations and Inequalities;Agarwal,1992
3. On superlinear and sublinear (np;Agarwal;Nonlinear World,1997
4. Existence of solutions for singular boundary value problems for higher order differential equations;Agarwal;Rend. Sem. Math. Fis. Milano,1995
5. Advanced Topics in Difference Equations;Agarwal,1997