Short description: In Russian. Petrovsky, Ivan Georgievich. Lectures on the theory of ordinary differential equations. Moscow Leningrad: GONTI, Editorial Teacher-Theoretical Lies, 1939 (Leningrad). Lektsii po teorii obyknovennykh differentsial'nykh uravneniy. In Russian /Lectures on the theory of ordinary differential equations . The image is provided for reference only. It may reflect condition of one of the available copies or only help in identifying the edition. Please feel free to contact us for a detailed description of the copies available. SKU5198165