%0 Journal Article
%A Duggal, B.P.
%T A Putnam area inequality for thespectrum of n-tuples ofp-hyponormal operators
%J Glasgow mathematical journal
%D 1999
%P 385-391
%V 41
%N 3
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089599000543/
%R 10.1017/S0017089599000543
%F 10_1017_S0017089599000543