@article{EJDE_2014__2014__a25,
     author = {Li, Chengyue and Zhang, Qi and Chen, Fenfen},
     title = {Pairs of sign-changing solutions for sublinear elliptic equations with {Neumann} boundary conditions},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2014},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2014__2014__a25/}
}