@article{ETNA_2013__40__a25,
     author = {Kamgnia,  Emmanuel and Philippe,  Bernard},
     title = {Counting eigenvalues in domains of the complex field},
     journal = {Electronic transactions on numerical analysis},
     pages = {1--16},
     year = {2013},
     volume = {40},
     zbl = {1288.65050},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2013__40__a25/}
}