2002, Article in monograph or in proceedings (Schmilewski, G.; Rochefort, L. (ed.), Proceeding of the International Peat Symposium on Peat in Horticulture—Quality and Environmental Challenges. P¨arnu, Estonia, September 3–6. International Peat Society, Jyv ¨askyl ¨ a, Finland, pp. 283-291)
2002, Article in monograph or in proceedings (R. Keller (ed.), Proceedings of the 21st Conference of European Comparative Endocrinologists : Bonn, Germany, August 26 - 30, 2002, pp. 147-152)