Control of Λ-structure transformation into a turbulent spot by means of riblets Litvinenko, Yu.A., Chernoray, V.G., Kozlov, V.V., Loefdahl, L., Grek G.R. 2007 In Proc. Int. Conf. on Methods of Aerophys. Research, Novosibirsk, Russia, 152–156, Feb. 5–10 Without Abstract   check pdf