@article{ELA_2010__20__a29,
     author = {Mazko, A.G.},
     title = {Spectrum localization of regular matrix polynomials and functions},
     journal = {The electronic journal of linear algebra},
     pages = {333--350},
     publisher = {mathdoc},
     volume = {20},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2010__20__a29/}
}