@article{RLIN_2002_9_13_2_a4,
     author = {El Mehdi, Khalil and Pacella, Filomena},
     title = {Morse index and blow-up points of solutions of some nonlinear problems},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {101--105},
     publisher = {mathdoc},
     volume = {Ser. 9, 13},
     number = {2},
     year = {2002},
     zbl = {1221.35145},
     mrnumber = {1384837},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_2002_9_13_2_a4/}
}