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Îðèãèíàë: Ãèíçáóðã Â Ë «Êîñìè÷åñêèå ëó÷è ó Çåìëè è âî Âñåëåííîé» ÓÔÍ 74 521–552 (1961); DOI: 10.3367/UFNr.0074.196107d.0521