[1]
J. M. de Vos and F. J. Breteler, “A REVISION OF THE AFRICAN GENERA PAROPSIOPSIS AND SMEATHMANNIA (PASSIFLORACEAE – PAROPSIEAE), INCLUDING A NEW SPECIES OF PAROPSIOPSIS FROM CAMEROON”, Edinburgh J. Bot., vol. 66, no. 1, pp. 27–49, Mar. 2009, doi: 10.1017/S0960428609005174.