1. Forest development, soil genesis and human activity illustrated by pollen and hypha analysis at two neighboring podsols in Draved Forest, Denmark;Aaby;Dan. Geol. Unders.,1983
2. Rates of peat formation in relation to degree of humification and local environment, as shown by studies of a raised bog in Denmark;Aaby;Boreas,1975
3. Pflanzentopographische und Paläogeographische Mooruntersuchungen in N-Satakunta;Aario;Commun. Inst. For. Fenn.,1932
4. Über die Wald — und Klimaentwicklung an der Lappländischen Eismeerküste in Petsama. Mit einem Beitrag zur Nord- und Mittel-Europäischen Klimageschichte;Aario;Ann. Bot. Soc. Zool. Bot. Fenn. Vanamo,1943
5. The plant nutrient content of rainwater;Allen;J. Ecol.,1968