Short description: In Russian. Paperno, Leonid Borisovich. Designing relay protection devices on non-contact elements. Moscow: Higher School, 1979 Proektirovanie ustroystv releynoy zashchity na beskontaktnykh elementakh/Designing Relay Protection Devices on Contactless Cells In Russian. 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. SKU7655665