%0 Journal Article %A Liu, Yuji %A Shi, Haiping %T Existence of unbounded positive solutions for BVPs of singular fractional differential equations %J Journal of nonlinear sciences and its applications %D 2012 %P 281-293 %V 5 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.22436/jnsa.005.04.04/ %R 10.22436/jnsa.005.04.04 %G en %F JNSA_2012_5_4_a3