1. The equivalence of linear and non-linear equations;Herbst,1956
2. Equivalent linear models for non-linear non-autonomous systems;Dasarathy;Journal of Sound and Vibration,1975
3. Second order linear and non-linear differential equations;Gergen,1965
4. Equations equivalent to nonlinear differential equations;deSpautz,1967
5. Non-linear Ordinary Differential Equations in Transport Processes;Ames,1968