%0 Journal Article %A V. V. Minakhin %T Liouville's theorem and Harnack's inequality for Beltrami's equation on an arbitrary manifold %J Funkcionalʹnyj analiz i ego priloženiâ %D 1980 %P 71-72 %V 14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1980_14_2_a20/ %G ru %F FAA_1980_14_2_a20