1. Late Quaternary Vegetation History of Northwestern Greece;Bottema;Thesis, Groningen,1974
2. Modern pollen precipitation in Syria and Lebanon and its relation to vegetation;Bottema;Pollen Spores,1979
3. Stream deposition and erosion by the eastern shore of the Aegean;Eisma,1978
4. Die Insel Kreta, eine geobotanische Skizze;Greuter;Inst. ETH, Stiftung, Rübel, Zürich,1975
5. Spores and pollen in Mediterranean bottom sediments;Koreneva,1971