%0 Journal Article
%T Concurrent circadian periodicities: gross activity and self stimulation with light
%J Acta psychologica
%D 1970
%A Thor, D. H.
%A Pierson, E.
%V 34
%N 1
%P 67-77
%X <p>[Abstract unavailable]</p><p>Language: en</p>
%G en
%I Elsevier Publishing
%@ 0001-6918
%U http://dx.doi.org/