%0 Journal Article %A V. V. Kozlov %T Rationality conditions for the ratio of elliptic integrals and the great Poncelet theorem %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2003 %P 6-13 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2003_4_a1/ %G ru %F VMUMM_2003_4_a1