Seppo Kellomäki, Pekka Niemelä, Heli Peltola, Veikko Koski and Pertti Pulkkinen
References:
Kilpeläinen, A. University of Joensuu, Faculty of Forest Sciences. Unpublished data.
Häkkinen, R., Linkosalo, T., and Hari, P. 1995. Methods for combining phonological time series: application to bud burst in birch (Betula pendula) in Central Finland for the period 1896–1955. Tree Physiology 15: 721–726.
Beuker, E., Kolström, M., and Kellomäki, S. 1996. Changes in wood production of Picea abies and Pinus sylvestris under a warmer climate: comparison of field measurements and results of a mathematical model. Silva Fennica 30: 239–246.
Kellomäki, S. University of Joensuu, Faculty of Forest Sciences. Unpublished data.