00662naa#a2200181#i#450# EN\INFRA-M\bibl\39256 /en/manage/index 20250323110903.7 2500-0489 20200918b2020####ek#y0engy0150####ca RU Investigation of the system for receiving calls via special communication lines Journal article Moscow INFRA-M Academic Publishing LLC. 2020 3 с. Journal article local Общие вопросы математических и естественных наук. 50 Gabdullin Rustem Bahytovich test.editorum.ru /en/manage/index