@article{AA_2016_28_2_a1,
     author = {C. Bandle and A. Wagner},
     title = {Domain perturbations for elliptic problems with {Robin} boundary conditions of opposite sign},
     journal = {Algebra i analiz},
     pages = {34--57},
     publisher = {mathdoc},
     volume = {28},
     number = {2},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2016_28_2_a1/}
}