%0 Journal Article %A O. N. Abroskina %A G. Kh. Kitaeva %A A. N. Penin %T An effective brightness of electromagnetic vacuum %J Doklady Akademii Nauk %D 1985 %P 584-586 %V 280 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1985_280_3_a16/ %G ru %F DAN_1985_280_3_a16