@article{EJDE_2016__2016__a53,
     author = {Wang,  Tao},
     title = {Existence and nonexistence of nontrivial solutions for {Choquard} type equations},
     journal = {Electronic journal of differential equations},
     year = {2016},
     volume = {2016},
     zbl = {1333.35027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2016__2016__a53/}
}