Bak, J., Løkke, H., Posch, M. (red.), Hettelingh, J.-P. (red.), de Smet, P. A. M. (red.) & Downing, R. J. (red.) (1997).
Denmark. I
RIVM Report (s. 71-75). RIVM. National Institute of Public Health and the Environment.
Bak, J., Bastrup-Birk, A. (red.), Clark, D. R. (red.) & Geernaert, G. (red.) (1997).
Modelling of Effects (CALLUNA). I A. Bastrup-Birk, D. R. Clark & G. Geernaert (red.),
The Roskilde Project: Assessment of the Present State of International Environmental Observations, Research and Technology, and Identification of Future Demands (s. 88-89). National Environmental Research Institute.
Bak, J., Hansen, K. (red.), Raulund-Rasmussen, K. (red.) & Gundersen, P. (red.) (1996).
Luftforurening. I
Skovbrugsserien (s. 7-13). Forskningscentret for Skov.
Bak, J., Jensen, J., Larsen, M. M., Pritzl, G.
& Scott-Fordsmand, J. (1997).
A Hevy Metal Monitoring-Programme in Denmark.
Science of the Total Environment,
207, 179-186.
Bak, J., Tybirk, K., Gundersen, P., Jensen, J. P.
, Conley, D. J. & Hertel, O. (1999).
Natur- og miljøeffekter af ammoniak. Danmarks Jordbrugsforskning. Ammoniakfordampning - redegørelse Bind 3
Bak, J., Johansson, M. (red.) & Lindström, M. (red.) (1999).
Uncertainties in Impacts. I
The Finnish Environment (s. 30-33). Helsinki: Finnish Environment Institute.