TY - BOOK AU - Kohl,Walter H TI - Handbook of materials and techniques for vacuum devices: Walter H. Kohl T2 - American vaccum society classics SN - 1563963876 U1 - 621.3815 21 PY - 1995/// CY - New York PB - AIP Press KW - Electronics KW - materials KW - Vacuum tubes N1 - includes index ER -