%0 Journal Article %A A. Yu. Popov %T On the completeness of systems of exponentials with real exponents of a given upper density in the space of analytic functions %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1999 %P 48-52 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1999_5_a7/ %G ru %F VMUMM_1999_5_a7