%0 Journal Article %A K. Ya. Kondrat'ev %A V. V. Melent'ev %A V. Yu. Aleksandrov %T Microwave-emission properties of various types of underlying at negative temperatures %J Doklady Akademii Nauk %D 1989 %P 67-70 %V 306 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_306_1_a14/ %G ru %F DAN_1989_306_1_a14