Periodic Solutions of First-Order Functional Differential Equations in Population Dynamics Seshadev Padhi, John R. Graef, P. D. N. Srinivasu E-Book (pdf)

Topological Methods for Differential Equations and Inclusions John R. Graef, Johnny Henderson, Abdelghani Ouahab E-Book (epub)

Topological Methods for Differential Equations and Inclusions John R. Graef, Johnny Henderson, Abdelghani Ouahab E-Book (pdf)