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2020
1 Garmo, Øyvind Aaberg; Kaste, Øyvind; Arle, Jens; Austnes, Kari; de Wit, Heleen; Fölster, Jens; Houle, Daniel; Hruska, Jakub; Indriksone, Iveta; Monteith, Don; Rogora, Michaela; Sample, James Edward; Steingruber, Sandra; Stoddard, John L.; Talkop, Reet; Trodd, Wayne; Ulańczyk, Rafał Piotr; Vuorenmaa, Jussi.
Trends and patterns in surface water chemistry in Europe and North America between 1990 and 2016, with particular focus on changes in land use as a confounding factor for recovery. : Norsk institutt for vannforskning 2020 (ISBN 978-82-577-7214-7) 47 s. NIVA-rapport(7479)
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2 Thrane, Jan-Erik; Persson, Jonas; Kile, Maia Røst; Bækkelie, Knut Andreas Eikland; Myrvold, Knut Marius; Garmo, Øyvind Aaberg; Grung, Merete; Guerrero, Jose-Luis; de Wit, Heleen; Moe, Therese Fosholt.
Overvåking av referanseelver 2019. Basisovervåking i henhold til vannforskriften.. : Norsk institutt for vannforskning 2020 (ISBN 978-82-577-7220-8) 220 s. NIVA-rapport(7485)
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2019
3 Braaten, Hans Fredrik Veiteberg; Åkerblom, Staffan; Kahilainen, Kimmo Kalevi; Rask, Martti; Vuorenmaa, Jussi; Mannio, Jaakko; Malinen, Tommi; Lydersen, Espen; Poste, Amanda; Amundsen, Per-Arne; Kashulin, Nicholas; Kashulina, Tatiana; Terentyev, Petr; Christensen, Guttorm; de Wit, Heleen.
Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia. Environmental Science and Technology 2019 ;Volum 53.(4) s. 1834-1843
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4 de Wit, Heleen.
Klimaendring og vannkvalitet. Kjemisk vannkvalitet – hva kan vi vente oss?. Klimaendring og vannkvalitet - hva kan vi vente oss?; 2019-05-06 - 2019-05-06
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5 de Wit, Heleen.
Progress report ICP Waters. Joint extended bureaux meeting WGE-EMEP LRTAP Convention; 2019-03-19 - 2019-03-21
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6 de Wit, Heleen; Braaten, Hans Fredrik Veiteberg; Gundersen, Cathrine Brecke; Krzeminski, Pawel; Vogt, Rolf David.
Long-term Mercury records in a boreal lake: lake Processing and the role of organic matter. SETAC Europe 29th Annual meeting; 2019-05-26 - 2019-05-30
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7 Gundersen, Cathrine Brecke; Krzeminski, Pawel; Martinez-Frances, Elena; Ong, Stevenson Harvey Lee; Færgestad, Eline Mosleth; Braaten, Hans Fredrik Veiteberg; Vogt, Rolf David; de Wit, Heleen.
In-Lake Processing Influences DOM Biodegradability and Hg-cycling. EGU General Assembly 2019; 2019-04-07 - 2019-04-12
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8 Hagman, Camilla Hedlund Corneliussen; Skjelbred, Birger; Thrane, Jan-Erik; Andersen, Tom; de Wit, Heleen A.
Growth responses of the nuisance algae Gonyostomum semen (Raphidophyceae) to DOC and associated alterations of light quality and quantity. Aquatic Microbial Ecology 2019 ;Volum 82.(3) s. 241-251
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9 Krzeminski, Pawel; Vogelsang, Christian; Meyn, Thomas; Köhler, Stephan; Poutanen, Heikki; de Wit, Heleen; Uhl, Wolfgang.
Natural organic matter fractions and their removal in full-scale drinking water treatment under cold climate conditions in Nordic capitals. Journal of Environmental Management 2019 ;Volum 241. s. 427-438
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10 McGovern, Maeve; Evenset, Anita; Borgå, Katrine; Wit, Heleen de; Braaten, Hans Fredrik Veiteberg; Hessen, Dag Olav; Schultze, Sabrina; Ruus, Anders; Poste, Amanda.
Implications of Coastal Darkening for Contaminant Transport, Bioavailability, and Trophic Transfer in Northern Coastal Waters. Environmental Science and Technology 2019 ;Volum 53.(13) s. 7180-7182
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11 Moe, Therese Fosholt; Persson, Jonas; Bækkelie, Knut Andreas Eikland; Myrvold, Knut Marius; Garmo, Øyvind Aaberg; Grung, Merete; Hindar, Atle; Guerrero Calidonio, Jose-Luis; de Wit, Heleen.
Overvåking av referanseelver 2018. Basisovervåking i henhold til vannforskriften. Oslo: Norsk Insitutt for Vannforskning 2019 (ISBN 978-82-577-7113-3) 256 s. NIVA-rapport(7378)
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12 Weyhenmeyer, Gesa A; Hartmann, Jens; Hessen, Dag O; Kopáček, Jiří; Hejzlar, Josef; Jacquet, Stéphan; Hamilton, Stephen K; Verburg, Piet; Leach, Taylor H; Schmid, Martin; Flaim, Giovanna; Nõges, Tiina; Nõges, Peeter; Wentzky, Valerie C; Rogora, Michela; Rusak, James A; Kosten, Sarian; Paterson, Andrew M; Teubner, Katrin; Higgins, Scott N; Lawrence, Gregory; Kangur, Külli; Kokorite, Ilga; Cerasino, Leonardo; Funk, Clara; Harvey, Rebecca; Moatar, Florentina; de Wit, Heleen A; Zechmeister, Thomas.
Widespread diminishing anthropogenic effects on calcium in freshwaters. Scientific Reports 2019 ;Volum 9. s. -
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2018
13 Austnes, Kari; Aherne, Julian; Arle, Jens; Čičendajeva, Marina; Couture, Suzanne; Fölster, Jens; Garmo, Øyvind Aaberg; Hruska, Jakub; Monteith, Don; Posch, Max; Rogora, Michaela; Sample, James Edward; Skjelkvåle, Brit Lisa; Steingruber, Sandra; Stoddard, John L.; Ulańczyk, Rafał; Van Dam, Herman; Velasco, Manuel Toro; Vuorenmaa, Jussi; Wright, Richard Frederic; de Wit, Heleen.
Regional assessment of the current extent of acidification of surface waters in Europe and North America. : Norsk institutt for vannforskning 2018 134 s. NIVA-rapport(7268)
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14 Braaten, Hans Fredrik Veiteberg; de Wit, Heleen; Larssen, Thorjørn; Poste, Amanda.
Mercury in fish from Norwegian lakes: The complex influence of aqueous organic carbon. Science of the Total Environment 2018 ;Volum 627. s. 341-348
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15 Braaten, Hans Fredrik Veiteberg; Gundersen, Cathrine Brecke; Sample, James Edward; Selvik, John Rune; de Wit, Heleen.
Atmospheric deposition and lateral transport of mercury in Norwegian drainage basins: A mercury budget for Norway. Oslo: Norsk institutt for vannforskning 2018 (ISBN 978-82-577-7045-7) 47 s. NIVA-rapport(7310)
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16 Braaten, Hans Fredrik Veiteberg; Åkerblom, Staffan; de Wit, Heleen; Poste, Amanda; Rask, Martti; Vuorenmaa, Jussi; Kahilainen, Kimmo Kalevi; Malinen, Tommi.
Mercury in freshwater fish from Fennoscandia (1965-2015) - temporal trends and potential environmental drivers. European Geosciences Union; 2018-04-08 - 2018-04-13
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17 de Wit, Heleen.
Will an effective policy to reduce Hg emissions lead to cleaner rivers and lakes?. Mercury in freshwaters – from forest to fish – in northern ecosystems; 2018-12-05 - 2018-12-05
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18 de Wit, Heleen A; Couture, Raoul-Marie; Jackson-Blake, Leah; Futter, Martyn N.; Valinia, Salar; Austnes, Kari; Guerrero, Jose-Luis; Lin, Yan.
Pipes or chimneys? For carbon cycling in small boreal lakes, precipitation matters most. Limnology and Oceanography Letters 2018 ;Volum 3.(3) s. 275-284
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19 de Wit, Heleen; Braaten, Hans Fredrik Veiteberg; Lund, Espen.
The role of dissolved organic matter in boreal lake mercury cycling. European Geosciences Union (EGU) General Assembly; 2018-04-08 - 2018-04-13
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20 de Wit, Heleen; Couture, Raoul-Marie; Futter, Martin N; Vogt, Rolf David; Krzeminski, Pawel Konrad; Francés, Elena Martínez; Ong, Stevenson Harvey Lee; Jackson-Blake, Leah Amber.
Climate-driven changes in removal of DOC in a small boreal lake: a 30-year time series. EGU General Assembly; 2018-04-08 - 2018-04-13
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21 Garmo, Øyvind Aaberg; Ulańczyk, Rafał; de Wit, Heleen.
Proceedings of the 34th Task Force meeting of the ICP Waters Programme in Warsaw, May 7-9, 2018. Oslo: Norsk institutt for vannforskning 2018 (ISBN 978-82-577-7033-4) 44 s. NIVA-rapport(7298)
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22 Krzeminski, Pawel; de Wit, Heleen; Uhl, Wolfgang.
Natural organic matter variability and removal in main drinking water treatment plants of Northern European capital cities. Water Quality Technology Conference; 2018-11-11 - 2018-11-15
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23 Krzeminski, Pawel; Vogelsang, Christian; Meyn, Thomas; Köhler, Stephan; Poutanen, Heikki; de Wit, Heleen; Uhl, Wolfgang.
Seasonal changes and removal of NOM fractions in main waterworks of Nordic capital cities. 11th Nordic Drinking Water Conference (NDWC); 2018-06-11 - 2018-06-13
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24 Lund, Espen; Garmo, Øyvind A; de Wit, Heleen A; Kristensen, Torstein; Hawley, Kate L; Wright, Richard F.
Reduced Acid Deposition Leads to a New Start for Brown Trout (Salmo trutta) in an Acidified Lake in Southern Norway. Water, Air and Soil Pollution 2018 ;Volum 229. s. -
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25 Moe, Therese Fosholt; Thrane, Jan-Erik; Persson, Jonas; Bækkelie, Knut Andreas Eikland; Myrvold, Knut Marius; Olstad, Kjetil; Garmo, Øyvind Aaberg; Grung, Merete; de Wit, Heleen.
Overvåking av referanseelver 2017. Basisovervåking i henhold til vannforskriften. Oslo: Norsk institutt for vannforskning 2018 (ISBN 978-82-577-6994-9) 279 s. NIVA-rapport(7259)
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26 Vuorenmaa, Jussi; Augustaitis, Algirdas; Beudert, Burkhard; Bochenek, Witold; Clarke, Nicholas; de Wit, Heleen A; Dirnböck, Thomas; Frey, Jane; Hakola, Hannele; Kleemola, Sirpa; Kobler, Johannes; Krám, Pavel; Lindroos, Antti-Jussi; Lundin, Lars; Löfgren, Stefan; Marchetto, Aldo; Pecka, Tomasz; Schulte-Bisping, Hubert; Skotak, Krzysztof; Srybny, Anatoly; Szpikowski, Józef; Ukonmaanaho, Liisa; Váňa, Milan; Åkerblom, Staffan; Forsius, Martin.
Long-term changes (1990–2015) in the atmospheric deposition and runoff water chemistry of sulphate, inorganic nitrogen and acidity for forested catchments in Europe in relation to changes in emissions and hydrometeorological conditions. Science of the Total Environment 2018 ;Volum 625. s. 1129-1145
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2017
27 Braaten, Hans Fredrik Veiteberg; Åkerblom, Staffan; de Wit, Heleen; Skotte, Gunnar; Rask, Martti; Vuorenmaa, Jussi; Kahilainen, Kimmo K.; Malinen, Tommi; Rognerud, Sigurd; Lydersen, Espen; Amundsen, Per-Arne; Kashulin, Nicholas; Kashulina, Tatiana; Terentyev, Petr; Christensen, Guttorm; Jackson-Blake, Leah Amber; Lund, Espen; Rosseland, Bjørn Olav.
Spatial and temporal trends of mercury in freshwater fish in Fennoscandia (1965-2015). Oslo: Norsk institutt for vannforskning 2017 (ISBN 978-82-577-6914-7) 70 s. NIVA-rapport(7179)
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28 Avset, Liv Mildrid Melkild; Braaten, Hans Fredrik Veiteberg; de Wit, Heleen; Åkerblom, Staffan.
Mindre kvikksølv i ferskvannsfisk. forskning.no [Internett] 2017-10-09
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29 Braaten, Hans Fredrik Veiteberg; Lindholm, Markus; Halvorsen, Godtfred A.; de Wit, Heleen.
Re-writing history: Five decades of methylmercury concentrations in aquatic zoobenthos from lakes in the Norwegian boreal Ecozone. 13th international Conference on Mercury as a Global Pollutant; 2017-07-16 - 2017-07-21
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30 Braaten, Hans Fredrik Veiteberg; Åkerblom, Staffan; Christensen, Guttorm N; Poste, Amanda; de Wit, Heleen; Jackson-Blake, Leah Amber.
Impacts of climate and lake browning on mercury concentrations in fish – an analysis of resampled perch populations in Scandinavia. 13th international Conference on Mercury as a Global Pollutant; 2017-07-16 - 2017-07-21
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31 de Wit, Heleen; Braaten, Hans Fredrik Veiteberg; Krzeminski, Pawel Konrad; Lund, Espen; Martinez-Frances, Elena; Ong, Stevenson Harvey Lee; Vogt, Rolf David.
The Role of DOM in Catchment and Lake Mercury Cycling in a Boreal lake catchment. 13th International Conference on Mercury as a global pollutant, ICMGP2017; 2017-07-16 - 2017-07-21
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32 de Wit, Heleen; Braaten, Hans Fredrik Veiteberg; Vogt, Rolf David.
The role of DOM in catchment and lake mercury cycling in a boreal lake catchment. 13th international Conference on Mercury as a Global Pollutant; 2017-07-16 - 2017-07-21
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33 Garmo, Øyvind Aaberg; de Wit, Heleen; Fölster, Jens.
Proceedings of the 33rd Task Force meeting of the ICP Waters Programme in Uppsala, May 9-11, 2017. Oslo: Norsk institutt for vannforskning 2017 (ISBN 978-82-577-6913-0) 60 s. NIVA-rapport(7178)
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34 Martínez, Elena.
Biodegradability and Spectroscopic Properties of Dissolved Natural Organic Matter Fractions Linked to Hg and MeHg Transport and Uptake. : Universitetet i Oslo 2017
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35 Vuorenmaa, Jussi; Augustaitis, Algirdas; Beudert, Burkhard; Clarke, Nicholas; de Wit, Heleen; Dirnböck, Thomas; Frey, Jane; Forsius, Martin; Indriksone, Iveta; Kleemola, Sirpa; Kobler, Johannes; Kram, Pavel; Lindroos, Antti-Jussi; Lundin, Lars; Ruoho-Airola, Tuija; Ukonmaanaho, Liisa; Vána, Milan.
Long-term sulphate and inorganic nitrogen mass balance budgets in European ICP Integrated Monitoring catchments (1990–2012). Ecological Indicators 2017 ;Volum 76. s. 15-29
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36 Åkerblom, Staffan; Braaten, Hans Fredrik Veiteberg; de Wit, Heleen; Christensen, Guttorm.
A Fennoscandian platform of freshwater fish mercury data for the evaluation of effects of transboundary air pollution. 13th international Conference on Mercury as a Global Pollutant; 2017-07-16 - 2017-07-21
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2016
37 Borchgrevink, Harald Bonaventura; de Wit, Heleen.
Vannet blir brunere i en våtere fremtid. forskning.no [Internett] 2016-12-17
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38 Braaten, Hans Fredrik Veiteberg; de Wit, Heleen A..
Effects of disturbance and vegetation type on total and methylmercury in boreal peatland and forest soils. Environmental Pollution (1987) 2016 ;Volum 218. s. 140-149
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39 de Wit, Heleen A; Ledesma, Jose L J; Futter, Martyn N..
Aquatic DOC export from subarctic Atlantic blanket bog in Norway is controlled by seasalt deposition, temperature and precipitation. Biogeochemistry 2016 ;Volum 127.(2) s. 305-321
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40 de Wit, Heleen A.; Valinia, Salar; Weyhenmeyer, Gesa A; Futter, Martyn N.; Kortelainen, Pirkko; Austnes, Kari; Hessen, Dag O; Raike, Antti; Laudon, Hjalmar; Vournenmaa, Jussi.
Current Browning of Surface Waters Will Be Further Promoted by Wetter Climate. Environmental Science and Technology Letters 2016 ;Volum 3.(12) s. 430-435
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41 de Wit, Heleen; Valinia, Salar; Steingruber, Sandra.
Proceedings of the 31st Task Force meeting of the ICP Waters Programme in Monte Verità, Switzerland, October 6-8, 2015. ICP Waters report 126/2016. Oslo: Norsk institutt for vannforskning 2016 (ISBN 978-82-577-6738-9) 55 s. NIVA-rapport(7003)
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42 Finstad, Anders Gravbrøt; Andersen, Tom; Larsen, Søren; Tominaga, Koji; Blumentrath, Stefan; de Wit, Heleen A.; Tømmervik, Hans; Hessen, Dag Olav.
From greening to browning: Catchment vegetation development and reduced S-deposition promote organic carbon load on decadal time scales in Nordic lakes. Scientific Reports 2016 ;Volum 6.
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43 Strand, Line Tau; Callesen, Ingeborg; Dalsgaard, Lise; de Wit, Heleen A.
Carbon and nitrogen stocks in Norwegian forest soils — the importance of soil formation, climate, and vegetation type for organic matter accumulation. Canadian Journal of Forest Research 2016 ;Volum 46.(12) s. 1459-1473
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44 Valinia, Salar; de Wit, Heleen.
Proceedings of the 32nd Task Force meeting of the ICP Waters Programme in Asker, Oslo, May 24-26, 2016. Oslo: Norsk institutt for vannforskning 2016 (ISBN 978-82-577-6825-6) 51 s. NIVA-rapport(7090)
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45 Velle, Gaute; Mahlum, Shad Kenneth; Monteith, Don T.; de Wit, Heleen; Arle, Jens; Fjellheim, Arne; Frolova, Marina; Fölster, Jens; Grudule, Natalja; Halvorsen, Godtfred A.; Hildrew, Alan; Hruska, Jakub; Indriksone, Iveta; Kamasova, Lenka; Kopáček, Jiří; Kram, Pavel; Orton, Stuart; Senoo, Takaaki; Shilland, Ewan M.; Stuchlík, Evžen; Telford, Richard J.; Ungermanova, Lenka; Wiklund, Magda-Lena; Wright, Richard F..
Biodiversity of macro-invertebrates in acid-sensitive waters: trends and relations to water chemistry and climate. Oslo: Norsk institutt for vannforskning 2016 (ISBN 978-82-577-6812-6) 38 s. NIVA-rapport(7077)
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2015
46 Couture, Raoul-Marie; de Wit, Heleen; Tominaga, Koji; Kiuru, Petri; Markelov, Igor.
Modelling the impact of increasing dissolved organic carbon load on seasonal anoxia in a boreal humic lake.. Joint Assembly 2015; 2015-05-03 - 2015-05-07
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47 Couture, Raoul-Marie; de Wit, Heleen; Tominaga, Koji; Kiuru, Petri; Markelov, Igor.
Oxygen dynamics in a boreal lake responds to long-term changes in climate, ice phenology, and DOC inputs. Journal of Geophysical Research (JGR): Biogeosciences 2015 ;Volum 120.(11) s. 2441-2456
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48 de Wit, Heleen; Austnes, Kari; Hylen, Gro; Dalsgaard, Lise.
A carbon balance of Norway: terrestrial and aquatic carbon fluxes. Biogeochemistry 2015 ;Volum 123. s. 147-173
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49 de Wit, Heleen; Hettelingh, Jean-Paul; Harmens, Harry.
Trends in ecosystem and health responses to long-range transported atmospheric pollutants - ICP Waters report 125/2015. Oslo: Norsk institutt for vannforskning 2015 (ISBN 978-82-577-6681-8) 92 s. NIVA-rapport(6946)
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50 de Wit, Heleen; Wathne, Bente Margrethe.
Proceedings of the 30th Task Force meeting of the ICP Waters Programme in Grimstad, Norway 14th –16th October, 2014. Oslo: Norsk institutt for vannforskning 2015 (ISBN 978-82-577-6528-6) 58 s. NIVA-rapport(6793)
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