1. Ashton PS (1972) The quaternary geomorphological history of western Malesia and lowland forest phytogeography. Transactions of the second Aberdeen-Hull symposium on Malesian ecology, Misc Ser 13:35–62
2. Ashton PS (1982) Dipterocarpaceae. Flora Males Ser I 9(2):237–552
3. Bailey RG (1983) Delineation of ecosystem regions. Environ Manag 19:239–248
4. Baillie IC, Ashton PS, Court MN, Anderson JAR, FitzPatrick EA, Tinsley J (1987) Site characteristics and the distribution of tree species in mixed dipterocarp forest on tertiary sediments in central Sarawak. Malays J Trop Ecol 3:201–220
5. Baker WJ, Coode MJE, Dransfield J, Harley MM, Hoffman P, Johns RJ (1998) Patterns of distribution of Malesian vascular plants. In: Hall R, Holloway JD (eds) Biogeography and geological evolution of SE Asia. Backhuys Publishers, Leiden, pp 243–258