hɪz mˈeɪn wˈɜːk ɪz ðə dˈɔɪtʃᵻz wˈɜːɾɚbˌʌtʃ dʒˈɜːmən dˈɪkʃənˌɛɹi, ˈɔːlsoʊ ɹᵻfˈɜːd tʊ æz dˈɛɹ wˈɑːɹɪɡ, fˈɜːst ᵻdˈɪʃən ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti sˈɪks, wˌɪtʃ ɪz stˈɪl pˈʌblɪʃt tədˈeɪ.
His main work is the Deutsches Wörterbuch (German Dictionary, also referred to as Der Wahrig, 1st edition in 1966), which is still published today.