Svendsen, L. M. & HELCOM (red.) (1998).
Source Apportionment. I
Baltic Sea Environment Proceedings (s. 71-84). Helsinki Commission. Baltic Marine Environment Protection Commission.
Nielsen, K., Krause-Jensen, D., Bäck, S. (red.), Ekebom, J. (red.), Johansson, C. (red.), Kangas, P. (red.), Kautsky, H. (red.), Krause-Jensen, D. (red.), Mäkinen, A. (red.) & Nielsen, K. (red.) (1998).
Supporting Parameters. I
TemaNord (Bind 1998:568, s. 39). Copenhagen: Nordic Councils of Ministers.
Larsen, S. E., Kronvang, B., Windolf, J.
, Svendsen, L. M. & International Association on Water Quality (red.) (1998).
Trends in Diffuse Nutrient Concentrations and Loadings in Denmark: Statistical Trend Analysis of Stream Monitoring Data. I International Association on Water Quality (red.),
3rd International Conference on Diffuse Pollution. Conference Proceedings, Edinburgh, Scotland, 31 August - 4 September 1998 (s. 184-195). International Association on Water Quality (IAWQ).
Jeppesen, E., Søndergaard, M., Dall, E., Rasmussen, A., Lauridsen, T. L., Mortensen, E.
, Søndergaard, M. (red.), Jeppesen, E. (red.), Jensen, J. P. (red.)
, Lauridsen, T. L. (red.), Müller, J. P. (red.), Jerl Jensen, H. (red.), Berg, S. (red.) & Hvidt, C. (red.) (1998).
Væng Sø: Biomanipulation. I
Miljønyt (s. 245-258). Miljøstyrelsen.