1. The bending and stretching of plates;Mansfield,1964
2. Soil settlement effects on buildings;Dulácska,1992
3. Lidstone continuous and discrete boundary value problems;Agarwal;Memoirs on Diff. Equ. and Math. Phy.,2000
4. Positive solutions for (p, n — p) conjugate boundary value problems;Agarwal;J. Differential Equations,1998