hiː ˈɛntɚd kˌɔːɹɪspˈɑːndəns wɪð ɹˈuːdɑːlf duːˈɑːlə mˈæŋɡə bˈɛl, ɐ lˈaɪkmˈaɪndᵻd lˈiːdɚ fɹʌmðə duːˈɑːlə ˈɛθnɪk ɡɹˈuːp.
He entered correspondence with Rudolf Duala Manga Bell, a like-minded leader from the Duala ethnic group.