%0 Journal Article %A N. M. Frolov %T Experimental estimation of the influence which gravitational convection and lining tubes have on the %J Doklady Akademii Nauk %D 1963 %P 301-304 %V 150 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_150_2_a19/ %G ru %F DAN_1963_150_2_a19