"Short description: In Russian. Wegner, Otto Germanovich. Theory and Practice of Switching DC Machines. Moscow; Leningrad: Gosenergoizdat, 1961. Teoriya i praktika kommutatsii mashin postoyannogo toka. In Russian /The theory and practice of DC machine switching . 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. SKU5999859"