(1)
Azandi, L.; Stévart, T.; Sonké, B.; Simo-Droissart, M.; D’haijère, T.; Droissart, V. Taxonomic Description and Pollination Ecology of Cyrtorchis Okuensis (Orchidaceae, Angraecinae), a New Species Endemic to the Cameroon Volcanic Line. plecevo 2021, 154, 483-496.