@article{DAN_1986_287_2_a8,
     author = {N. A. Ostapenko},
     title = {On the {Ferry} singularity point on the windward side of $\mathrm{V}$-shaped wings},
     journal = {Doklady Akademii Nauk},
     pages = {295--298},
     publisher = {mathdoc},
     volume = {287},
     number = {2},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_287_2_a8/}
}