Williams, Scott W.: "Mathematicians of the African Diaspora" The Mathematics Department of The State University of New York at Buffalo.[1] (页面存档备份,存于互联网档案馆)
Williams, Scott W.: "Mathematicians of the African Diaspora" The Mathematics Department of The State University of New York at Buffalo.[1] (页面存档备份,存于互联网档案馆)