Loigu, E., Leisk, Ü., Olli, K., Pall, P., Timm, H., Järvekülg, A., Viik, M., Porgassaar, M., Nõges, T.
allikas
Sustainable Management of Transboundary Waters in Europe : Second International Conference, Poland, Miedzyzdroje, 21-24 April, 2002 : lecture and posters