ðə ɹɪzˈʌlts ʌv hɪz ɹᵻsˈɜːtʃ ɑːɹ pˈʌblɪʃt ɪn ɐbˌaʊt fˈaɪvhˈʌndɹɪd ˈɑːɹɾɪkəlz ɪn ˌɪntɚnˈæʃənəl saɪəntˈɪfɪk dʒˈɜːnəlz.
The results of his research are published in about 500 articles in international scientific journals.