Palva, E. T., Welling, A., Taehtiharju, S., Tamminen, I., Puhakainen, T., Makela, P., et al. (2001).
Cold acclimation and development of freezing and drought tolerance in plants. In S. Sorvari, S. Karhu, E. Kanervo, & S.
Pihakaski (Eds.), Proceedings of the 4th International Symposium
on in Vitro Culture and Horticultural Breeding (pp. 277-284). Leuven, BEL: International Society Horticultural
Science.