For citations:

Terentyev A.G., Khatymov R.V., Maltsev A.V. A device for controlling the energy of ionizing electrons in the low-energy range designed to form a complete mass spectrum of negative ions using a quadrupole mass spectrometer. Industrial laboratory. Diagnostics of materials. 2020;86(4):12-20. (In Russ.) https://doi.org/10.26896/1028-6861-2020-86-4-12-20