Title: Vserossiĭskiĭ seminar po aėrogidrodinamike posvi︠a︡shchaetsi︠a︡ 90-letii︠u︡ so dni︠a︡ rozhdenii︠a︡ Sergei︠a︡ Vasilʹevicha Vallandera
Subjects: Fluid dynamics, Congresses