1. Multiple positive fixed points of nonlinear operators on ordered Banach spaces;Leggett;Indiana University Mathematics Journal,1979
2. Existence of multiple positive solutions to a conjugate boundary value problem;Avery;MSR Hot-Line,1998
3. Multiple positive fixed points of weakly inward mappings;Sun;Journal of Mathematical Analysis and Applications,1990
4. Multiple positive solutions for a three-point boundary value problem;Anderson;Modelling,1998
5. Existence of multiple solutions for some nth order boundary value problems;Henderson;Comm. Appl. Nonlinear Anal.,2000