%0 Journal Article
%A Yu. G. Ryzhkov
%T The recorded integral heat values of solar radiation between $64^\circ$ s. lat, and $60^\circ$ n. lat.
%J Doklady Akademii Nauk
%D 1960
%P 352-354
%V 133
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1960_133_2_a23/
%G ru
%F DAN_1960_133_2_a23