%0 Journal Article
%A J. W. Moon
%A L. Moser
%T An extremal problem in matrix theory
%J Matematički vesnik
%D 1966
%P 209 
%V 18
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MV_1966_18_3_a10/
%F MV_1966_18_3_a10