%0 Journal Article %A Janovská, Drahoslava %A Opfer, Gerhard %T Computing quaternionic roots by Newton's method %J Electronic transactions on numerical analysis %D 2007 %P 82-102 %V 26 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2007__26__a21/ %G en %F ETNA_2007__26__a21