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@article{Makarov:1970,
author = {G. I. Makarov and V. V. Novikov},
title = {Problems in the Propagation of Superlong Radio Waves in the Earthionosphere Waveguide Channel},
publisher = {Physics-Uspekhi},
year = {1970},
journal = {Phys. Usp.},
volume = {12},
number = {4},
pages = {581-583},
url = {https://ufn.ru/en/articles/1970/4/j/},
doi = {10.1070/PU1970v012n04ABEH004065}
}
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