%0 Journal Article
%A K. Ya. Kondrat'ev
%A A. A. Buznikov
%A A. G. Nikolaev
%A V. I. Sevast'yanov
%A O. I. Smoktiy
%T Results of visual observations of night, twilight and day horizons of the Earth from the ``Soyuz-9'' spaceship
%J Doklady Akademii Nauk
%D 1971
%P 574-577
%V 197
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_197_3_a18/
%G ru
%F DAN_1971_197_3_a18