@article{10_21136_AM_1984_104103,
     author = {Regi\'nska, Teresa},
     title = {Convergence of approximation methods for eigenvalue problem for two forms},
     journal = {Applications of Mathematics},
     pages = {333--341},
     publisher = {mathdoc},
     volume = {29},
     number = {5},
     year = {1984},
     doi = {10.21136/AM.1984.104103},
     mrnumber = {0772268},
     zbl = {0584.65033},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1984.104103/}
}