%0 Journal Article
%T First-Order Singular and Discontinuous Differential Equations
%A Biles DanielC
%A L¨®pez Pouso Rodrigo
%J Boundary Value Problems
%D 2009
%I Springer
%X We use subfunctions and superfunctions to derive sufficient conditions for the existence of extremal solutions to initial value problems for ordinary differential equations with discontinuous and singular nonlinearities.
%U http://www.boundaryvalueproblems.com/content/2009/507671