Belarus) Mezhdunarodnyĭ sovetsko-pol'skiĭ seminar "Matematicheskie metody optimal'nogo upravlenii︠a︡ i ikh prilozhenii︠a︡" (1989 Minsk

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There is no public salon activity to show for Belarus) Mezhdunarodnyĭ sovetsko-pol'skiĭ seminar "Matematicheskie metody optimal'nogo upravlenii︠a︡ i ikh prilozhenii︠a︡" (1989 Minsk yet.