@article{ASNSP_2012_5_11_1_143_0,
     author = {Montenegro, Marcelo and Silva, Elves A. B.},
     title = {Two solutions for a singular elliptic equation~by variational methods},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {143--165},
     publisher = {Scuola Normale Superiore, Pisa},
     volume = {Ser. 5, 11},
     number = {1},
     year = {2012},
     mrnumber = {2953046},
     zbl = {1241.35103},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_2012_5_11_1_143_0/}
}