PACS:01.60.+q DOI:10.1070/PU1976v019n04ABEH005257 URL: https://ufn.ru/en/articles/1976/4/i/ Citation: Zel’dovich Ya B, Kondrat’ev V N, Sadovskii M A, Khariton Yu B, Émanuél’ N M "Nikolai Nikolaevich Semenov (on his eightieth birthday)" Sov. Phys. Usp.19 358–360 (1976)