Claudianor O. Alves, Dragoş-Pătru Covei, “Existence of solution for a class of nonlocal elliptic problem via sub.supersolution method”, Nonlinear Analysis: Real World Applications, 23 (2015), 1–8
Dragos-Patru Covei, “Existence and uniqueness of solutions for the Lane, Emden and Fowler type problem”, Nonlinear Analysis: Theory, Methods & Applications, 72:5 (2010), 2684–2693
Dragos-Patru Covei, “Large and entire large solution for a quasilinear problem”, Nonlinear Analysis: Theory, Methods & Applications, 70:4 (2009), 1738–1745