%0 Journal Article %A L. Sehnal %T Model of the Upper Total Density Distribution $TD_{88}$ %J Publications of the Department of Astronomy %D 1988 %P 19 - 22 %V 16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDA_1988_16_1_a1/ %F PDA_1988_16_1_a1