%0 Journal Article %A G. D. Chabakauri %T String Vibrations with Free Right Endpoint and with a Control of Small Absolute Value at the Left Endpoint %J Differencialʹnye uravneniâ %D 2003 %P 820-828 %V 39 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2003_39_6_a10/ %G ru %F DE_2003_39_6_a10