%0 Journal Article %A Gunter Malle %A Gabriel Navarro %T Extending characters from Hall subgroups. %J Documenta mathematica %D 2011 %P 901-919 %V 16 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/355/ %R 10.4171/dm/355 %F 10_4171_dm_355