hɪz bˈʊks, wˌɪtʃ wɜː wˈɛl ɹᵻsˈiːvd æt ðə tˈaɪm ænd ɑːɹ nˈaʊ fɹˈiːkwəntli kwˈoʊɾᵻd ɪn hɪstˈɔːɹɪkəl lˈɪɾɚɹᵻtʃɚ, wˈɪlɛms dɪskˈʌsᵻz æt lˈɛŋθ hɪz jˈuːs ʌv "θˈɜːd dᵻɡɹˈiː" ɪntˌɛɹəɡˈeɪʃən mˈɛθədz ˌɔn pɹˈɪzənɚz.
His books, which were well received at the time and are now frequently quoted in historical literature, Willemse discusses at length his use of "third degree" interrogation methods on prisoners.