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.
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Оригинал: Альперт Я Л «Письмо в редакцию „Успехов физических наук“» УФН 94 581–581 (1968); DOI: 10.3367/UFNr.0094.196803k.0581