1. A positive fixed point theorem with applications to systems of Hammerstein integral equations;Cabada;Bound. Value Probl.,2014
2. A new criterion for the existence of multiple solutions in cones;Franco;Proc. Roy. Soc. Edinburgh,2012
3. Multiple solutions to a fourth-order boundary-value problem;Cabada;Electron. J. Differential Equations,2016
4. Functional expansion-compression fixed point theorem of Leggett-Williams type;Anderson;Electron. J. Differential Equations,2010
5. Multiple positive fixed points of nonlinear operators on ordered Banach spaces;Leggett;Indiana Univ. Math. J.,1979