In publishing this letter by Ya. L. Al'pert, the editors conclude the discussion of his article ``The Outer Ionosphere and Its Transition to the Interplanetary Medium'', deeming a continuation of this discussion inadvisable.
@article{Al’pert:1968, author = {Ya. L. Al’pert}, title = {Letter to the Editor}, publisher = {Physics-Uspekhi}, year = {1968}, journal = {Phys. Usp.}, volume = {11}, number = {2}, pages = {283-283}, url = {https://ufn.ru/en/articles/1968/2/o/}, doi = {10.1070/PU1968v011n02ABEH003827} }
Оригинал: Альперт Я Л «Письмо в редакцию „Успехов физических наук“» УФН 94 581–581 (1968); DOI: 10.3367/UFNr.0094.196803k.0581