%0 Journal Article %A Luca Sabatini %T Products of subgroups, subnormality, and relative orders of elements %J Ars Mathematica Contemporanea %D 2024 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.2975.1b2/ %R 10.26493/1855-3974.2975.1b2 %G en %F 10_26493_1855_3974_2975_1b2