References
- C. De Coster and P. Habets. Two-point boundary value problems: lower and upper solutions, volume 205 of Mathematics in Science and Engineering. Elsevier, Amsterdam, Netherlands, 2006.
- M. Dobkevich and F. Sadyrbaev. Types and multiplicity of solutions to SturmLiouville boundary value problem. Mathematical Modelling and Analysis, 20(1):1–8, 2015. http://dx.doi.org/10.3846/13926292.2015.996259.
- L.H. Erbe. Nonlinear boundary value problems for second order differential equations. Journal of Differential Equations, 7(3):459–472, 1970. http://dx.doi.org/10.1016/0022-0396(70)90094-X.
- H.-W. Knobloch. Comparison theorems for nonlinear second order differential equations. Journal of Differential Equations, 1(1):1–26, 1965. http://dx.doi.org/10.1016/0022-0396(65)90025-2.
- M. Krasnoselskii, A. Perov, A. Povolockii and P. Zabreiko. Plane vector fields. Fizmatgiz, Moscow, 1966. (in Russian)
- F.G. Tricomi. Differential Equations. Blackie & Son Ltd, London, 1962. (in Russian)
- I. Yermachenko and F. Sadyrbaev. Quasilinearization and multiple solutions of the Emden-Fowler type equation. Mathematical Modelling and Analysis, 10(1):41–50, 2005. http://dx.doi.org/10.1080/13926292.2005.9637269.