"Festus T. Aka,Tetsuya Yokoyama,Minoru Kusakabe,Eizo Nakamura,Gregory Tanyileke,Bekoa Ateba,Vincent Ngako,Joseph Nnange,Joseph Hell","U-series dating of Lake Nyos maar basalts, Cameroon (West Africa): Implications for potential hazards on the Lake Nyos dam",,"Journal of Volcanology and Geothermal Research",,"Vol. 176",,"pp. 212-224",2008,