@article{ETNA_2009__35__a11,
     author = {Alonso, Ana and Russo, Anah{\'\i} Dello},
     title = {Spectral approximation of variationally formulated eigenvalue problems on curved domains},
     journal = {Electronic transactions on numerical analysis},
     pages = {69--87},
     publisher = {mathdoc},
     volume = {35},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2009__35__a11/}
}