500 Examples and Problems of Applied Differential Equations Ravi P. Agarwal, Simona Hodis, Donal O'Regan E-Book (pdf)

Dynamic Inequalities On Time Scales Ravi Agarwal, Donal O'Regan, Samir Saker E-Book (pdf)

Non-Instantaneous Impulses in Differential Equations Ravi Agarwal, Snezhana Hristova, Donal O'Regan E-Book (pdf)