@article{Pestrikov2022problems,
author={Pestrikov, V.M.},
title={Problems of Long-Distance Telephony at the Turn  of the 19th and 20th Centuries and the Search  for Their Solutions},
journal={Infocommunications and Radio Technologies},
publisher={Federal State Educational Institution of Higher Education Sevastopol State University},
year={2022},
pages={117-151},
volume={5},
issue={1},
}