D.A. Kandilakis," An existence result for nonlinear evolution equations of second
order," Discussiones Mathematicae. Differential Inclusions, vol. 16, pp. 153-160, 1996.
We consider a second order differential equation involving the difference of two monotone operators. Using an auxiliary equation, a priori bounds and a compactness argument we show that the differential equation has a local solution. An example is also presented in detail.