%0 Journal Article
%T Diurnal variation, task characteristics, and vigilance performance
%J Human factors
%D 1987
%A Matthews, Gerald
%A Davies, D. R.
%A Craig, A.
%V 29
%N 6
%P 675-684
%X Abstract unavailable.
%G 
%I SAGE Publishing
%@ 0018-7208
%U http://dx.doi.org/