@article{ETNA_2008__31__a2,
     author = {Laszkiewicz,  Beata and Zi\c{e}tak,  Krystyna},
     title = {Algorithms for the matrix sector function},
     journal = {Electronic transactions on numerical analysis},
     pages = {358--383},
     year = {2008},
     volume = {31},
     zbl = {1190.65069},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2008__31__a2/}
}