%0 Journal Article
%T An evaluation of four methods of monitoring simultaneous primary and secondary voice messages
%J Human factors
%D 1967
%A Williams, E. W.
%A Young, D. D.
%V 9
%N 1
%P 45-52
%X <p>[Abstract unavailable]</p> <p>Language: en</p>
%G en
%I SAGE Publishing
%@ 0018-7208
%U http://dx.doi.org/