1. ASTM E297/70. Standard Methods for Calibrating Ionization Vacuum Tubes.
2. AVS 6.2 (1969). Procedure for Calibrating Vacuum Gauges of the Thermal Conductivity Type.
3. AVS 6.4 (1969). Procedure for Calibrating Hot Filament Ionization Gauges Against a Reference Manometer in the Range 10−2–10−5 Torr.
4. Proc. 4th Int. Vac. Congr. Manchester 1968;Bannenberg,1968