%0 Journal Article %A V. N. Bobochko %T An Orr--Sommerfeld Equation with a First-Order Differential Turning Point %J Differencialʹnye uravneniâ %D 2003 %P 171-179 %V 39 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2003_39_2_a2/ %G ru %F DE_2003_39_2_a2