%0 Journal Article %A N. A. Ostapenko %T On the Ferry singularity point on the windward side of $\mathrm{V}$-shaped wings %J Doklady Akademii Nauk %D 1986 %P 295-298 %V 287 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_287_2_a8/ %G ru %F DAN_1986_287_2_a8