F.  Kuetegue, Sonké, B., and Ameka, G. K., ?A checklist of rheophytes of Cameroon?, PhytoKeys, vol. 121, pp. 81-131, 2019.

H.  Taedoumg, Sonké, B., Hamon, P., and De Block, P., ?Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains.?, PhytoKeys, vol. 83, pp. 103-118, 2017.

S. Mogue Kamga, Niangadouma, R., Stauffer, F. W., Sonké, B., and Couvreur, T. L. P., ?Two new species of Raphia (Palmae/Arecaceae)  from Cameroon and Gabon?, PhytoKeys, vol. 111, pp. 17-30, 2018.