A R Ferchmin

A R Ferchmin is the author of "Soft Magnetic Alloys, Invar and Elinvar Alloys", "Liquid-Quenched Alloys / Aus der Schmelze abgeschreckte Legierungen", "Amorphous Magnetism and Metallic Magnetic Materials - Digest" and "Liquid-quenched Alloys / Aus der Schmelze...