%0 Journal Article %A D. Kh. Mushtari %T Some remarks on measures on orthogonal rational projections and the rational sphere %J Lobachevskii journal of mathematics %D 2001 %P 47-53 %V 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/LJM_2001_9_a5/ %G en %F LJM_2001_9_a5