%0 Journal Article %T Analytic Solutions of an Iterative Functional Differential Equation near Resonance %A Tongbo Liu %A Hong Li %J International Journal of Differential Equations %D 2009 %I Hindawi Publishing Corporation %R 10.1155/2009/145213 %X We investigate the existence of analytic solutions of a class of second-order differential equations involving iterates of the unknown function ­å­å() %U http://www.hindawi.com/journals/ijde/2009/145213/