@article{EJDE_2005__2005__a44,
     author = {Xu,  Xian},
     title = {Multiple positive solutions for singular semi-positone delay differential equation},
     journal = {Electronic journal of differential equations},
     year = {2005},
     volume = {2005},
     zbl = {1075.34059},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a44/}
}