@article{10_4171_dm_355,
     author = {Gunter Malle and Gabriel Navarro},
     title = {Extending characters from {Hall} subgroups.},
     journal = {Documenta mathematica},
     pages = {901--919},
     year = {2011},
     volume = {16},
     doi = {10.4171/dm/355},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/355/}
}