• Nutrient losses and hydrological processes in small agricultural catchments. Some results of measurements in Norway, Latvia and EstoniaVagstad, Nils; Jansons, Viesturs; Loigu, EnnScientific Basis to Mitigate the Nutrient Dispersion into the Environment : Falenty/Nadarzyn near Warsaw, December 13-14, 1999 : conference proceedings2000 / p. 216-223 : ill