Keizer, J. J. (2000). Vascular plant family composition of the Eastern Cordillera of Colombia. [Thesis, fully internal, Universiteit van Amsterdam]. UvA/IBED.
Hooghiemstra, H. (1999). Origins, maintenance and change of biodiversity. In Een bijdrage aan Programma element 2 van het DIVERSITAS Programma
Behling, H., & Hooghiemstra, H. (1999). Late Pleistocene paleotemperature estimates for tropical South America based on vegetation changes. In Abstract Symposium 'Global Ocean and Land Surface Temperatures during the Last Ice-Age
Behling, H., Lima da Costa, M., & Hooghiemstra, H. (1999). Carbon storage changes in different ecosystems from tropical South America during last glacial and Holocene times. In Book of Abstracts XV INQUA Congress (pp. 20-20)
Berrio Mogollon, J. C., Behling, H., & Hooghiemstra, H. (1999). Paleo-ecological history of the Colombian rain forest since the Middle Holocene: a comparison between Amazonia and Chocó Biogeographic Area. In Book of Abstracts XV INQUA Congress (pp. 21-22)
Boom, A., Sinnenghe Damsté, J. S., de Leeuw, J., Boon, J. J., & Hooghiemstra, H. (1999). pCO2 and temperature controlled changes in Quaternary altitudinal vegetation distribution in Colombia; a geochemical approach. In Book of Abstracts XV INQUA Congress (pp. 28-29)
Hooghiemstra, H., Mommersteeg, H. J. P. M., & van der Hammen, T. (1999). Stage 5 (including Eemian) climatic change in northern South America (133-70 ka BP): reconstruction from 6 Colombian pollen records. In Book of Abstracts XV INQUA Congress (pp. 83-83)
Hooghiemstra, H. (1999). Wie wil er nu nog promoveren in Nederland?BioNieuws, 13, 2-2.
Behling, H., & Hooghiemstra, H. (1999). Interhemispheric comparison of late Quaternary pollen records from neotropical savanna environments. In Book of Abstracts VII Brazilian Association for Quaternary Studies (ABEQUA) Congress (pp. 10-11)
Hooghiemstra, H. (1999). Neotropical rain forest refugia during the last ice age: bridging the gap between concepts and data. In Book of Abstracts VII Brazilian Association for Quaternary Studies (ABEQUA) Congress (pp. 30-31)
