A. J. F. K.  Craig, Hasson, M., Jordaens, K., Breman, F. C., and Louette, M., ?Range extension of the Lufira Masked Weaver Ploceus ruweti, endemic to Katanga province, Democratic Republic of Congo?, Ostrich, vol. 82, no. 1, pp. 77 - 78, 2011.