-
1دورية
المؤلفون: Saarse, Leili, Vassiljev, Jüri, Miidel, Avo, Niinemets, Eve
المصدر: Estonian Journal of Earth Sciences; December 2006, Vol. 55 Issue: 4 p296-320, 25p
-
2دورية
المؤلفون: Vassiljev, Jüri, Harrison, Sandy P., Guiot, Joël
المصدر: Quaternary Research; January 1998, Vol. 49 Issue: 1 p62-71, 10p