W.  Bert, Karssen, G., Van Driessche, R., and Geraert, E., ?The cellular structure of the female reproductive system within the Heteroderinae and Meloidogyninae (Nematoda)?, NematologyNematology, vol. 4, pp. 953-963, 2002.

W.  Bert, Claeys, M., and Borgonie, G., ?The comparative cellular architecture of the female gonoduct among Tylenchoidea (Nematoda : Tylenchina)?, Journal of NematologyJournal of Nematology, vol. 38, pp. 362-375, 2006.