1. The nonlinear differential equation y + p(x)y′ + cy−3 = 0;Pinney,1950
2. Equations equivalent to a linear differential equation;Thomas,1952
3. The equivalence of linear and nonlinear differential equations;Herbst,1956
4. Some nonlinear systems of differential equations equivalent to linear systems;Dressel,1963
5. Ordinary Non-linear Differential Equations;McLachlan,1955