@article{EJDE_1993__1993_5_a0,
     author = {Ren,  Xiaofeng},
     title = {Least-energy solutions to a non-autonomous semilinear problem with small diffusion coefficient},
     journal = {Electronic journal of differential equations},
     year = {1993},
     volume = {1993},
     number = {5},
     zbl = {0809.35028},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1993__1993_5_a0/}
}