THE EFFECT OF NON-METALLIC INCLUSIONS AND FILMS ON THE CATHODE ON SOME PROCESSES DURING VACUUM DISCHARGES D. I. Proskourovsky et V. F. PuchkarevJ. Phys. Colloques, 40 C7 (1979) C7-411-C7-412DOI: https://doi.org/10.1051/jphyscol:19797201