%0 Journal Article %A Burciu, Sebastian %T Subgroups of odd depth—a necessary condition %J Czechoslovak Mathematical Journal %D 2013 %P 1039-1048 %V 63 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10587-013-0070-9/ %R 10.1007/s10587-013-0070-9 %G en %F 10_1007_s10587_013_0070_9