00741naa#a2200169#i#450# EN\\bibl\53386 20250119052745.7 2587-9936 20220928b2022####ek#y0engy0150####ca RU Choice of Development Trend of Bell System at the Beginning of the 20th Century Journal article Sevastopol Federal State Educational Institution of Higher Education Sevastopol State University 2022 32 с. Journal article local Радиотехника. Техника электромагнитных колебаний. 621.37 Электросвязь. Техника электросвязи. 621.39 Pestrikov Viktor Mihaylovich rusjbpc.ru