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1.R. P. Agarwal and D. O'Regan , Singular differential and integral equations with applications (Kluwer Academic Publisher, Dordrecht, 2003).
2.R. P. Agarwal and D. O'Regan , Twin solutions to singular Dirichlet problems, J. Math. Anal. Appl. 240 (1999), 433–445.
3.S. Djebali and A. Orpel , A note on positive evanescent solutions for a certain class of elliptic problems, J. Math. Anal. Appl. 353 (2009), 215–223.
5.D. O'Regan , Theory of singular boundary value problems (World Scientific, Singapore, 1994).
6.A. Orpel , On the existence of bounded positive solutions for a class of singular BVP, Nonlinear Anal. 69 (2008), 1389–1395.
7.A. Orpel , Nonlinear BVPS with functional parameters, J. Differ. Equ. 246 (2009), 1500–1522.
9.H. Lü , D. O'Regan and R. P. Agarwal , Existence to singular boundary value problems with sign changing nonlinearities using an approximation methods approach, Appl. Math. 52 (2007), 117–135.