@article{RCM_1993__27_1-2_181865,
     author = {Alfonso Castro and Jorge Cossio},
     title = {Multiple radial solutions for a semilinear {Dirichlet} problem in a ball},
     journal = {Revista colombiana de matematicas},
     pages = {15--24},
     publisher = {mathdoc},
     volume = {27},
     number = {1-2},
     year = {1993},
     zbl = {0799.35024},
     url = {http://geodesic.mathdoc.fr/item/RCM_1993__27_1-2_181865/}
}