fɹʌm nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi fˈoːɹ tə nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi sˈɪks hˈɛsən wʌzɐ dˈɛpjuːɾi dᵻɹˈɛktɚɹ ʌvðə fˈɪzɪks ˈɪnstɪtˌuːt ɪn mˈɑːskoʊ hˈɛdᵻd baɪ ˈɛs.ˈaɪ. vˈævɪlˌʌv.
From 1934 to 1936 Hessen was a deputy director of the Physics Institute in Moscow headed by S.I. Vavilov.