%0 Journal Article %A Hartley, B. %T Subgroups of locally normal groups %J Compositio Mathematica %D 1976 %P 185-201 %V 32 %N 2 %I Noordhoff International Publishing %U http://www.numdam.org/item/CM_1976__32_2_185_0/ %G en %F CM_1976__32_2_185_0