Solid State Physics Program. A Capacitive High Pressure Gauge. Part 2. Apparatus and Recent Modifications. Technical Report No. 77., report, January 1, 1972; (https://digital.library.unt.edu/ark:/67531/metadc1033583/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .