Henrik Stendal, Sadrack Félix Toteu, Robert Frei, Joseph Penaye, Urbain Olivier Njel, Jean Bassahak, Jean Nni, Boniface Kankeu, Vincent Ngako, Joseph Victor Hell,
Derivation of detrital rutile in the Yaoundé region from the Neoproterozoic Pan-African belt in southern Cameroon (Central Africa) Journal of African Earth Sciences. ,vol. 44, pp. 443- 458 ,(2006) ,
10.1016/J.JAFREARSCI.2005.11.012