%0 Journal Article
%A Youssef Fares
%T $\delta $-rings and factorial sequences preservation
%J Acta Arithmetica
%D 2006
%P 377-388
%V 123
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/aa123-4-6/
%R 10.4064/aa123-4-6
%G en
%F 10_4064_aa123_4_6