@article{CMUC_2000__41_4_a6,
     author = {Liu, Xiaochun and Yang, Jianfu},
     title = {Multiple solutions of a {Schr\"odinger} type semilinear equation},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {735--745},
     publisher = {mathdoc},
     volume = {41},
     number = {4},
     year = {2000},
     mrnumber = {1800170},
     zbl = {1054.35094},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2000__41_4_a6/}
}