@article{EJDE_2006__2006__a106,
     author = {Babakhani, Azizollah and Daftardar-Gejji, Varsha},
     title = {Existence of positive solutions for multi-term non-autonomous fractional differential equations with polynomial coefficients},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2006},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2006__2006__a106/}
}