%0 Journal Article
%A McCarthy, Paul J.
%T Note on perfect and multiply perfect numbers
%J Portugaliae mathematica
%D 1957
%P 19-21
%V 16
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1957__16_1_114783/
%G en
%F PORMA_1957__16_1_114783