1. Chromones, containing an oxepin ring, from Ptaeroxylon obliquum;Dean;Tetrahedron Letters,1967
2. Umtatin and related chromones from the heartwood of Ptaeroxylon obliquum;Dean;Tetrahedron Letters,1967
3. Heartwood chromones of Cedrelopsis grevei;Dean;Phytochemistry,1971
4. Extractives from East African timbers. II. Ptaeroxylon obliquum;Dean;Journal of Chemical Society (C),1966
5. The isolation and structure elucidation of some derivatives of dimethylallylcoumarin, chromone, quinoline, and phenol from Fagara species and from Cedrelopsis grevei;Eshiett;Journal of Chemical Society (C),1968