@article{AFM_2003_28_1_a14,
     author = {Fumi-Yuki Maeda and Takayori Ono},
     title = {Perturbation theory for nonlinear {Dirichlet} problems},
     journal = {Annales Fennici Mathematici},
     pages = {207--222},
     year = {2003},
     volume = {28},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2003_28_1_a14/}
}