1. Treatment wetlands;Kadlec,1996
2. Hydraulics efficiency of constructed wetlands and ponds;Persson;Water Sci Technol,1999
3. Sabir IH, Haldorsen S, Torgersen J, Aleström P, Gaut S, Colleuille H, Pedersen TS, Kitterød N-O. Synthetic DNA tracers: examples of their application in water related studies. TraM’2000 Conference, Proceedings, vol. 262, Liege, IAHS, 2000. p. 159–65.
4. An evaluation of some fluorescent dyes for water tracing;Smart;Water Resour Res,1977
5. Ihme R. The use of overland flow for the purification of runoff water from peat mining areas. PhD thesis, 1994, University of Oulu, Oulu, Finland (in Finnish with abstract in English).