%0 Journal Article
%A K. Ya. Kondrat'ev
%A A. P. Galtsev
%A O. I. Smoktiy
%A E. V. Khrunov
%T Visual colour estimates of twilight sky according to observations from the spacecraft ``Soyuz-5''
%J Doklady Akademii Nauk
%D 1970
%P 824-825
%V 191
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_191_4_a19/
%G ru
%F DAN_1970_191_4_a19