%0 Journal Article %A Steiner, Richard %T Multiple semidirect products of associative systems %J Glasgow mathematical journal %D 1989 %P 353-369 %V 31 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007916/ %R 10.1017/S0017089500007916 %F 10_1017_S0017089500007916