@article{EJDE_1999__1999__a76,
     author = {Fang,  Weifu and Ito,  Kazufumi},
     title = {Solutions to a nonlinear drift-diffusion model for semiconductors},
     journal = {Electronic journal of differential equations},
     year = {1999},
     volume = {1999},
     zbl = {0921.35081},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a76/}
}