ðeɪ dˈɪd ðɪs ɪn ˈɔːɹdɚ tə fˈɪl ðə "hˈoʊl" ɪn dᵻmˈɛnʃən fˈɔːɹmjʊlˌiː fɔːɹ ɹˌɛpɹᵻzˈɛntˈeɪʃənz ʌvðɪ ˈɛn sˈɪɹiz wˌɪtʃ wʌz əbzˈɜːvd baɪ sˈiːvˌɪtɐnˈɑːvɪk, dᵻlˈiːn, kˈoʊən ænd də mˈæn.
They did this in order to fill the "hole" in dimension formulae for representations of the En series which was observed by Cvitanovic, Deligne, Cohen and de Man.