[1] Sun Hongrui, Li Wantong. Multiple positive solutions for even order Sturm-Liouville boundary value problems. Acta Math Sci, 2006, 26A(5): 700–706 (in Chinese)
[2] Yang Xiaojing. Existence of solutions for 2n-order boundary value problem. Appl Math Comput, 2003, 137: 77–87
[3] Zhao Zengqin. On the existence of positive solutions for 2n-order singular boundary value problems. Nonlinear Anal, TMA, 2006, 64: 2553–2561
[4] Sita Charkrit, Amnuay Kananthai, Existence of solutions for some higher order boundary value problems. J Math Anal Appl, 2007, 329: 830–850
[5] Zhang Xuemei, Feng Meiqiang, Positive solutions for a class of 2nth-order singular boundary value prob-lems. Nonlinear Anal, TMA, 2008, 69: 1287–1298
[6] Wei Zhongli, Pang Changci. A class of 2nth-order singular boundary value problems. Nonlinear Anal, TMA, 2007, 66: 1225–1245
[7] Liu Yuji. Note Solutions of two-point boundary value problems for even-order differential equations. J Math Anal Appl, 2006, 323: 721–740
[8] Yang Zhilin. Existence and uniqueness of positive solutions for a higher order boundary value problem. Comput Math Appl, 2007, 54: 220–228
[9] Liu Lishan, Zhang Xinguang, Wu Yonghong. Existence of positive solutions for singular higher-order differential equations. Nonlinear Anal, TMA, 2008, 68: 3948–3961
[10] Coster C De, Habets P. Two-Point Boundary Value Problems: Lower and Upper Solutions. Amsterdam: Elsevier, 2006
[11] Deimling K. Nonlinear Functional Analysis. New York: Springer-Verlag, 1985
[12] Guo Dajun. Nonlinear Functional Analysis. Jinan: Shandong Science and Technology Press, 2001 (in Chinese)
[13] Guo Dajun, Lakshmikantham V. Nonlinear Problems in Abstract Cones. Boston: Academic Press, 1988
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