Baltic agriculture in transition - the contribution to nutrient loads in the Gulf of Riga drainage basinVagstad, Nils; Jansons, Viesturs; Loigu, Enn; Deelstra, JohannesInternational Conference on Agricultural Effects on Ground and Surface Waters : Research and Policy at the Edge of Science and Society : Wageningen, 20002000 / p. 1-9

Baltic agriculture in transition - the contribution to nutrient loads in the Gulf of Riga drainage basinVagstad, Nils; Deelstra, Johannes; Jansons, Viesturs; Loigu, EnnAgricultural effects on ground and surface waters : research at the edge of science and society2002 / p. 367-372

Hydrological processes in small agricultural catchmentsDeelstra, Johannes; Eggestad, Hans Olav; Iital, Arvo; Jansons, ViestursProceedings of the 10th International Drainage Workshop of ICID Working Group on Drainage : Helsinki/Tallinn 6-11. July 20082008 / p. 314-333 : ill

Hydrology in small agricultural catchments, pathways and their impact on nutrient and soil lossDeelstra, Johannes; Eggestad, Hans Olav; Iital, Arvo; Jansons, ViestursStatus and Perspectives of Hydrology in Small Basins : International Workshop : Goslar - Hahnenklee, Germany, 30 March - 2 April 20092009 / p. 75-79

Interactions between hydrology and nutrient runoff in small agricultural catchments. A comparative study of Estonian, Latvian and Norwegian catchmentsDeelstra, Johannes; Vagstad, Nils; Loigu, Enn; Vassiljev, Anatoli; Jansons, ViestursXX Nordic Hydrological Conference, Helsinki, Finland, 10-13 August, 1998. Vol. 11998 / p. 120-128: ill

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

Nutrient losses from agricultural areas in the Gulf of Riga drainage basinVagstad, Nils; Jansons, Viesturs; Loigu, Enn; Deelstra, JohannesEcological engineering2000 / p. 435-441

Nutrient runoff from agricultural areas in Estonia and LatviaVagstad, Nils; Loigu, Enn; Jansons, Viesturs; Deelstra, Johannes; Njos, A.A synthesis report of the Gulf of Riga project's : sub-project Soil and Nutrient loss from small catchments : technical report1998 / [36] p

Risk assessment of phosphorus loss from agriculture in the Nordic and Baltic countries using the P index approachBechmann, Marianne; Deelstra, Johannes; Iital, Arvo; Jansons, ViestursXXIII Nordic Hydrological Conference ["Fresh Water Resources Management"] : Tallinn, Estonia, 8-12 August 2004 : selected articles. Vol. I2004 / p. 159-168 : ill

The GEF - Baltic Sea Regional Project - monitoring and assessment of non-point source pollutionDeelstra, Johannes; Vagstad, Nils; Loigu, Enn; Iital, Arvo; Jansons, Viesturs; Abramenko, Kaspars; Sileika, Antanas SigitasXXIII Nordic Hydrological Conference ["Fresh Water Resources Management"] : Tallinn, Estonia, 8-12 August 2004 : selected articles. Vol. II2004 / p. 393-405 : ill https://artiklid.elnet.ee/record=b2343498*est

Time resolution and hydrological characteristics in agricultural catchmentsDeelstra, Johannes; Eggestad, Hans Olav; Iital, Arvo; Jansons, Viesturs; Barkved, Line J.Status and perspectives of hydrology in small basins2010 / p. 138-143