An inverse problem for a nonlinear ordinary differential equation is discussed. We prove an existence theorem of a nonlinear term with which a boundary value problem admits a solution. This is an improvement of earlier work by A. Lorenzi. We also prove a uniqueness theorem of the nonlinear term.
"An inverse problem of determining a nonlinear term in an ordinary differential equation." Differential Integral Equations 11 (2) 341 - 359, 1998.