%0 Journal Article %T Existence of Positive Solutions of Fourth-Order Problems with Integral Boundary Conditions %A Ma Ruyun %A Chen Tianlan %J Boundary Value Problems %D 2011 %I Springer %X We study the existence of positive solutions of the following fourth-order boundary value problem with integral boundary conditions, , , , , , , where is continuous, are nonnegative. The proof of our main result is based upon the Krein-Rutman theorem and the global bifurcation techniques. %U http://www.boundaryvalueproblems.com/content/2011/297578