@article{EJDE_1994__1994_4_a0,
     author = {Anuradha,  V. and Dickens,  S. and Shivaji,  R.},
     title = {Existence results for non-autonomous elliptic boundary value problems},
     journal = {Electronic journal of differential equations},
     year = {1994},
     volume = {1994},
     number = {4},
     zbl = {0809.35023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1994__1994_4_a0/}
}