Publication profile
Publication profile
Jarle Hamar Reksten
Name:
Jarle Hamar Reksten
Title:
Seniorforsker / Senior Research Scientist
Phone:
(+47) 22852585 Mob: 95773268
Email:
jarlebh [at] nr [dot] no
Scientific areas:
Remote sensing, Pattern recognition, Image analysis, Machine learning, Deep learning, Automatic speech recognition
Add to contacts (vCard) Show publications
Academic journal articles
2021
Reksten, Jarle Hamar; Salberg, Arnt-Børre. Estimating Traffic in Urban Areas from Very-High Resolution Aerial Images. International Journal of Remote Sensing (ISSN 0143-1161). 42(3) pp 865-883. doi: 10.1080/01431161.2020.1815891. 2021.
2020
Trier, Øivind Due; Reksten, Jarle Hamar; Løseth, Kristian. Automated mapping of cultural heritage in Norway from airborne lidar data using faster R-CNN. International Journal of Applied Earth Observation and Geoinformation (ISSN 1569-8432). 95 doi: 10.1016/j.jag.2020.102241. 2020.
2019
Reksten, Jarle Hamar; Salberg, Arnt Børre; Solberg, Rune. Flood detection in Norway based on Sentinel-1 SAR imagery. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences (ISSN 1682-1750). XLII-3/W8 pp 349-355. doi: 10.5194/isprs-archives-XLII-3-W8-349-2019. 2019.
Academic chapters
2018
Kermit, Martin Andreas; Hamar, Jarle Bauck; Trier, Øivind Due. Towards a national infrastructure for semi-automatic mapping of cultural heritage in Norway. In: Oceans of data. Proceedings of the 44th Annual Conference on Computer Applications and Quantitative Methods in Archaeology. (ISBN 9781784917302). pp 159-172. 2018. Full-text
2016
Hamar, Jarle Bauck; Salberg, Arnt Børre; Ardelean, Florina. Automatic detection and mapping of avalanches in SAR images. In: Geoscience and Remote Sensing Symposium (IGARSS), 2016 IEEE International. (ISBN 978-1-5090-3332-4). pp 689-692. doi: 10.1109/IGARSS.2016.7729173. 2016. Full-text
2015
Svendsen, Torbjørn Karl; Hamar, Jarle Bauck. Combining NdHMM and Phonetic Feature Detection for Speech Recognition. In: Proceedings of European Signal Processing Conference. EURASIP. (ISBN 978-0-9928626-4-0). pp 1696-1700. doi: 10.1109/EUSIPCO.2015.7362667. 2015.
2013
Hamar, Jarle Bauck; Doddipatla, Rama Sanand; Svendsen, Torbjørn; Sreenivas, Thippur. Non-Negative Durational HMM. In: Proceedings of IEEE International Workshop on Machine Learning for Signal Processing 2013. (ISBN 978-1-4799-1180-6). doi: 10.1109/MLSP.2013.6661976. 2013.
Academic lectures
2019
Rudjord, Øystein; Solberg, Rune; Reksten, Jarle Hamar; Trier, Øivind Due. Monitoring lake ice cover with Sentinel-3. Konferanse, ESA Living Planet Symposium; Milano, 13.05.2019 - 17.05.2019.
2018
Reksten, Jarle Hamar; Salberg, Arnt Børre. Urban Traffic Density Estimation for Air Pollution Modelling using Deep Neural Networks. Workshop, EARSeL - 5th Joint Workshop - "Urban Remote Sensing – Challenges & Solutions"; Bochum, 24.09.2018 - 26.09.2018.
Solberg, Rune; Trier, Øivind Due; Rudjord, Øystein; Reksten, Jarle Hamar. A portfolio of snow products based on Sentinel-3 for snow hydrology. Konferanse, SnowHydro – International Conference on Snow Hydrology; Heidelberg, 12.02.2018 - 15.02.2018.
Solberg, Rune; Rudjord, Øystein; Salberg, Arnt Børre; Reksten, Jarle Hamar; Killie, Mari Anne; Eastwood, Steinar; Breivik, Lars-Anders. Local and regional trends in snow cover from a 34-year time series of satellite observations. Konferanse, 15th International Circumpolar Remote Sensing Symposium (ICRSS); Potsdam, 10.09.2018 - 14.09.2018.
2016
Kermit, Martin Andreas; Hamar, Jarle Bauck; Trier, Øivind Due. Towards a national infrastructure for semi-automatic mapping of cultural heritage in Norway. Konferanse, 44th Computer Applications and Quantitative Methods in Archaeology Conference (CAA 2016); Oslo, 29.03.2016 - 02.04.2016. Abstract
Salberg, Arnt Børre; Hamar, Jarle Bauck; Ardelean, Florina; Johansen, Thomas; Kampffmeyer, Michael C.. Automatic detection and segmentation of avalanches in remote sensing images using deep convolutional neural networks. Konferanse, The 18th International Symposium on Symbolic and Numerical Algorithms for Scientific Computing, Geoinformatics Workshop, 27.09.2016.
Salberg, Arnt Børre; Zortea, Maciel; Hamar, Jarle Bauck; Solberg, Rune; Sund, Monica; Colleuille, Hervé. Preparing for a national service for flood monitoring using Sentinel-1. Konferanse, ESA Living Planet Symposium, 09.05.2016.
2008
Amdal, Ingunn; Svendsen, Torbjørn; Johnsen, Magne Hallstein; Siniscalchi, Sabato Marco; Hamar, Jarle Bauck; Martinez, Del Hoyo Canterla A.. SIRKUS - A new paradigm for speech recognition. Konferanse, VERDIKT Conference 2008; Bergen, 29.10.2008 - 30.10.2008.
Posters at scientific conferences
2018
Solberg, Rune; Rudjord, Øystein; Salberg, Arnt Børre; Killie, Mari Anne; Reksten, Jarle Hamar; Steinar, Eastwood; Breivik, Lars-Anders. Local and regional trends in snow cover from a 34-year time series of satellite observations. 2018 EUMETSAT Meteorological Satellite Conference; Tallinn, 17.09.2018 - 21.09.2018.
Waldeland, Anders U.; Reksten, Jarle Hamar; Salberg, Arnt Børre. Avalanche detection in sar images using deep learning. International Geoscience and Remote Sensing Symposium, IGARSS 2018; Valencia, 22.07.2018 - 27.07.2018.
Reports
2020
Kreiner, Matilde Brandt; Pedersen, Leif Toudal; Solberg, Rune; Trier, Øivind Due; Reksten, Jarle Hamar; Rudjord, Øystein; Gustavsson, David. Dataset and data policy. AI4Arctic Deliverable 3. Norsk Regnesentral, Oslo. NR-notat SAMBA/32/20. pp 44. 2020.
Solberg, Rune; Salberg, Arnt Børre; Reksten, Jarle Hamar; Rasmussen, Gunnar; Kaljord, Andreas Hay; Jacobsen, Joakim. Design and development toward a global flood monitoring product. GlobFlom report. Norsk Regnesentral, Oslo. NR-notat SAMBA/49/20. pp 68. 2020.
Solberg, Rune; Rudjord, Øystein; Reksten, Jarle Hamar; Trier, Øivind Due. Multi-sensor multi-temporal FSC 2017-2020 dataset. S4S multi-FSC prototype products to EDI, Version 2.0. Norsk Regnesentral, Oslo. NR-notat SAMBA/24/20. pp 30. 2020.
Waldeland, Anders U.; Reksten, Jarle Hamar; Salberg, Arnt Børre; Solberg, Rune; Pedersen, Leif Toudal; Malmgren-Hansen, David; Kreiner, Matilde Brandt. ICT requirements and API. AI4Arctic Deliverable 2. Norsk Regnesentral, . NR-notat SAMBA/20/20. pp 24. 2020.
2019
Reksten, Jarle Hamar; Salberg, Arnt Børre; Solberg, Rune. System for deteksjon og kartlegging av flom basert på SAR. Norsk Regnesentral, . NR-notat SAMBA/11/19. pp 20. 2019.
Rudjord, Øystein; Reksten, Jarle Hamar; Solberg, Rune; Trier, Øivind Due; Melvold, Kjetil. Utvikling av operasjonell innsjøistjeneste hos NVE: Resultater fra prosjektfase 2. Norsk Regnesentral, . NR-notat SAMBA/45/19. pp 56. 2019.
Salberg, Arnt Børre; Reksten, Jarle Hamar; Solberg, Rune. Algorithms for flood detection and mapping by SAR. Algorithm Theoretical Basis Document, Flood Service System at NVE. Norsk Regnesentral, . NR-notat SAMBA/10/19. pp 24. 2019.
Solberg, Rune; Salberg, Arnt Børre; Reksten, Jarle Hamar; Kristensen, Søren Elkjær; Orthe, Nils Kristian; Sund, Monica. Utvikling av operasjonell flomtjeneste ved NVE. Resultater fra prosjektfase 3. Norsk Regnesentral, Oslo. NR-notat SAMBA/09/2019. pp 42. 2019.
Solberg, Rune; Reksten, Jarle Hamar; Trier, Øivind Due; Melvold, Kjetil; Orthe, Nils Kristian. Utvikling av operasjonell snøtjeneste ved NVE. Resultater fra prosjektfase 2. Norsk Regnesentral, Oslo. NR-notat SAMBA/52/2019. pp 50. 2019.
Trier, Øivind Due; Reksten, Jarle Hamar. Automated detection of cultural heritage in airborne lidar data. CultSearcher operationalisation. Norsk Regnesentral, Oslo. NR-notat SAMBA/50/19. pp 157. 2019.
2018
Rudjord, Øystein; Hamar, Jarle Bauck; Solberg, Rune; Trier, Øivind Due; Melvold, Kjetil. Utvikling av operasjonell innsjøistjeneste hos NVE. Resultater fra prosjektfase 1. Norsk Regnesentral, . NR-notat SAMBA/20/18. pp 37. 2018.
Solberg, Rune; Rudjord, Øystein; Salberg, Arnt Børre; Reksten, Jarle Hamar. Further advancement of global snow mapping in CryoClim. Sentinel4CryoClim Phase 2 - Deliverables 1, 3-7. Norsk Regnesentral, Oslo. NR-notat SAMBA/44/18. pp 82. 2018.
2017
Salberg, Arnt Børre; Reksten, Jarle Hamar. Semi-automatic detection of ice breeding seal pups. Norsk Regnesentral, . NR-notat SAMBA/03/2017. pp 20. 2017.
Solberg, Rune; Salberg, Arnt Børre; Reksten, Jarle Hamar; Trier, Øivind Due; Sund, Monica; Colleuille, Hervé; Kristensen, Søren Elkjær; Orthe, Nils Kristian; Øydvin, Eli Katrina. Utvikling av operasjonell flomtjeneste ved NVE. Resultater fra prosjektfase nr. 1. Norsk Regnesentral, Oslo. NR-notat SAMBA/07/2017. pp 34. 2017.
Solberg, Rune; Salberg, Arnt Børre; Reksten, Jarle Hamar; Trier, Øivind Due; Kristensen, Søren Elkjær; Orthe, Nils Kristian; Colleuille, Hervé; Sund, Monica. Utvikling av operasjonell flomtjeneste ved NVE, Resultater fra prosjektfase 2. Norsk Regnesentral, Oslo. NR-notat SAMBA/37/2017. pp 28. 2017.
2016
Hamar, Jarle Bauck; Salberg, Arnt Børre; Trier, Øivind Due. Oil spill detection using optical and thermal remote sensing data. Norsk Regnesentral, . NR-notat SAMBA/55/16. pp 34. 2016.
Kermit, Martin Andreas; Trier, Øivind Due; Rudjord, Øystein; Hamar, Jarle Bauck; Aarsten, Dagrun; Gobakken, Terje; Næsset, Erik. Tree species classification with airborne LiDAR and hyperspectral imaging. HyperBio Project Report 2016. Norsk Regnesentral, Oslo. NR-notat SAMBA/60/16. pp 35. 2016.
Trier, Øivind Due; Hamar, Jarle Bauck; Kermit, Martin Andreas; Pilø, Lars Holger; Salberg, Arnt Børre. Application of remote sensing in cultural heritage management. CultSearcher project report 2015. Norsk Regnesentral, Oslo. NR-notat SAMBA/08/16. pp 195. 2016. Full-text
2015
Larsen, Siri Øyen; Hamar, Jarle Bauck; Salberg, Arnt Børre. State-of-the-art review of oil spill detection using optical and thermal remote sensing data. Norsk Regnesentral, Oslo. NR-notat SAMBA/14/15. pp 27. 2015.
| Name: | Jarle Hamar Reksten |
| Title: | Seniorforsker / Senior Research Scientist |
| Phone: | (+47) 22852585 Mob: 95773268 |
| Email: | jarlebh [at] nr [dot] no |
| Scientific areas: | Remote sensing, Pattern recognition, Image analysis, Machine learning, Deep learning, Automatic speech recognition |
| Add to contacts (vCard) |
| Show publications |
Academic journal articles
2021Reksten, Jarle Hamar; Salberg, Arnt-Børre. Estimating Traffic in Urban Areas from Very-High Resolution Aerial Images. International Journal of Remote Sensing (ISSN 0143-1161). 42(3) pp 865-883. doi: 10.1080/01431161.2020.1815891. 2021.
2020Trier, Øivind Due; Reksten, Jarle Hamar; Løseth, Kristian. Automated mapping of cultural heritage in Norway from airborne lidar data using faster R-CNN. International Journal of Applied Earth Observation and Geoinformation (ISSN 1569-8432). 95 doi: 10.1016/j.jag.2020.102241. 2020.
2019Reksten, Jarle Hamar; Salberg, Arnt Børre; Solberg, Rune. Flood detection in Norway based on Sentinel-1 SAR imagery. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences (ISSN 1682-1750). XLII-3/W8 pp 349-355. doi: 10.5194/isprs-archives-XLII-3-W8-349-2019. 2019.
Academic chapters
2018Kermit, Martin Andreas; Hamar, Jarle Bauck; Trier, Øivind Due. Towards a national infrastructure for semi-automatic mapping of cultural heritage in Norway. In: Oceans of data. Proceedings of the 44th Annual Conference on Computer Applications and Quantitative Methods in Archaeology. (ISBN 9781784917302). pp 159-172. 2018. Full-text
2016Hamar, Jarle Bauck; Salberg, Arnt Børre; Ardelean, Florina. Automatic detection and mapping of avalanches in SAR images. In: Geoscience and Remote Sensing Symposium (IGARSS), 2016 IEEE International. (ISBN 978-1-5090-3332-4). pp 689-692. doi: 10.1109/IGARSS.2016.7729173. 2016. Full-text
2015Svendsen, Torbjørn Karl; Hamar, Jarle Bauck. Combining NdHMM and Phonetic Feature Detection for Speech Recognition. In: Proceedings of European Signal Processing Conference. EURASIP. (ISBN 978-0-9928626-4-0). pp 1696-1700. doi: 10.1109/EUSIPCO.2015.7362667. 2015.
2013Hamar, Jarle Bauck; Doddipatla, Rama Sanand; Svendsen, Torbjørn; Sreenivas, Thippur. Non-Negative Durational HMM. In: Proceedings of IEEE International Workshop on Machine Learning for Signal Processing 2013. (ISBN 978-1-4799-1180-6). doi: 10.1109/MLSP.2013.6661976. 2013.
Academic lectures
2019Rudjord, Øystein; Solberg, Rune; Reksten, Jarle Hamar; Trier, Øivind Due. Monitoring lake ice cover with Sentinel-3. Konferanse, ESA Living Planet Symposium; Milano, 13.05.2019 - 17.05.2019.
2018Reksten, Jarle Hamar; Salberg, Arnt Børre. Urban Traffic Density Estimation for Air Pollution Modelling using Deep Neural Networks. Workshop, EARSeL - 5th Joint Workshop - "Urban Remote Sensing – Challenges & Solutions"; Bochum, 24.09.2018 - 26.09.2018.
Solberg, Rune; Trier, Øivind Due; Rudjord, Øystein; Reksten, Jarle Hamar. A portfolio of snow products based on Sentinel-3 for snow hydrology. Konferanse, SnowHydro – International Conference on Snow Hydrology; Heidelberg, 12.02.2018 - 15.02.2018.
Solberg, Rune; Rudjord, Øystein; Salberg, Arnt Børre; Reksten, Jarle Hamar; Killie, Mari Anne; Eastwood, Steinar; Breivik, Lars-Anders. Local and regional trends in snow cover from a 34-year time series of satellite observations. Konferanse, 15th International Circumpolar Remote Sensing Symposium (ICRSS); Potsdam, 10.09.2018 - 14.09.2018.
2016Kermit, Martin Andreas; Hamar, Jarle Bauck; Trier, Øivind Due. Towards a national infrastructure for semi-automatic mapping of cultural heritage in Norway. Konferanse, 44th Computer Applications and Quantitative Methods in Archaeology Conference (CAA 2016); Oslo, 29.03.2016 - 02.04.2016. Abstract
Salberg, Arnt Børre; Hamar, Jarle Bauck; Ardelean, Florina; Johansen, Thomas; Kampffmeyer, Michael C.. Automatic detection and segmentation of avalanches in remote sensing images using deep convolutional neural networks. Konferanse, The 18th International Symposium on Symbolic and Numerical Algorithms for Scientific Computing, Geoinformatics Workshop, 27.09.2016.
Salberg, Arnt Børre; Zortea, Maciel; Hamar, Jarle Bauck; Solberg, Rune; Sund, Monica; Colleuille, Hervé. Preparing for a national service for flood monitoring using Sentinel-1. Konferanse, ESA Living Planet Symposium, 09.05.2016.
2008Amdal, Ingunn; Svendsen, Torbjørn; Johnsen, Magne Hallstein; Siniscalchi, Sabato Marco; Hamar, Jarle Bauck; Martinez, Del Hoyo Canterla A.. SIRKUS - A new paradigm for speech recognition. Konferanse, VERDIKT Conference 2008; Bergen, 29.10.2008 - 30.10.2008.
Posters at scientific conferences
2018Solberg, Rune; Rudjord, Øystein; Salberg, Arnt Børre; Killie, Mari Anne; Reksten, Jarle Hamar; Steinar, Eastwood; Breivik, Lars-Anders. Local and regional trends in snow cover from a 34-year time series of satellite observations. 2018 EUMETSAT Meteorological Satellite Conference; Tallinn, 17.09.2018 - 21.09.2018.
Waldeland, Anders U.; Reksten, Jarle Hamar; Salberg, Arnt Børre. Avalanche detection in sar images using deep learning. International Geoscience and Remote Sensing Symposium, IGARSS 2018; Valencia, 22.07.2018 - 27.07.2018.
Reports
2020Kreiner, Matilde Brandt; Pedersen, Leif Toudal; Solberg, Rune; Trier, Øivind Due; Reksten, Jarle Hamar; Rudjord, Øystein; Gustavsson, David. Dataset and data policy. AI4Arctic Deliverable 3. Norsk Regnesentral, Oslo. NR-notat SAMBA/32/20. pp 44. 2020.
Solberg, Rune; Salberg, Arnt Børre; Reksten, Jarle Hamar; Rasmussen, Gunnar; Kaljord, Andreas Hay; Jacobsen, Joakim. Design and development toward a global flood monitoring product. GlobFlom report. Norsk Regnesentral, Oslo. NR-notat SAMBA/49/20. pp 68. 2020.
Solberg, Rune; Rudjord, Øystein; Reksten, Jarle Hamar; Trier, Øivind Due. Multi-sensor multi-temporal FSC 2017-2020 dataset. S4S multi-FSC prototype products to EDI, Version 2.0. Norsk Regnesentral, Oslo. NR-notat SAMBA/24/20. pp 30. 2020.
Waldeland, Anders U.; Reksten, Jarle Hamar; Salberg, Arnt Børre; Solberg, Rune; Pedersen, Leif Toudal; Malmgren-Hansen, David; Kreiner, Matilde Brandt. ICT requirements and API. AI4Arctic Deliverable 2. Norsk Regnesentral, . NR-notat SAMBA/20/20. pp 24. 2020.
2019Reksten, Jarle Hamar; Salberg, Arnt Børre; Solberg, Rune. System for deteksjon og kartlegging av flom basert på SAR. Norsk Regnesentral, . NR-notat SAMBA/11/19. pp 20. 2019.
Rudjord, Øystein; Reksten, Jarle Hamar; Solberg, Rune; Trier, Øivind Due; Melvold, Kjetil. Utvikling av operasjonell innsjøistjeneste hos NVE: Resultater fra prosjektfase 2. Norsk Regnesentral, . NR-notat SAMBA/45/19. pp 56. 2019.
Salberg, Arnt Børre; Reksten, Jarle Hamar; Solberg, Rune. Algorithms for flood detection and mapping by SAR. Algorithm Theoretical Basis Document, Flood Service System at NVE. Norsk Regnesentral, . NR-notat SAMBA/10/19. pp 24. 2019.
Solberg, Rune; Salberg, Arnt Børre; Reksten, Jarle Hamar; Kristensen, Søren Elkjær; Orthe, Nils Kristian; Sund, Monica. Utvikling av operasjonell flomtjeneste ved NVE. Resultater fra prosjektfase 3. Norsk Regnesentral, Oslo. NR-notat SAMBA/09/2019. pp 42. 2019.
Solberg, Rune; Reksten, Jarle Hamar; Trier, Øivind Due; Melvold, Kjetil; Orthe, Nils Kristian. Utvikling av operasjonell snøtjeneste ved NVE. Resultater fra prosjektfase 2. Norsk Regnesentral, Oslo. NR-notat SAMBA/52/2019. pp 50. 2019.
Trier, Øivind Due; Reksten, Jarle Hamar. Automated detection of cultural heritage in airborne lidar data. CultSearcher operationalisation. Norsk Regnesentral, Oslo. NR-notat SAMBA/50/19. pp 157. 2019.
2018Rudjord, Øystein; Hamar, Jarle Bauck; Solberg, Rune; Trier, Øivind Due; Melvold, Kjetil. Utvikling av operasjonell innsjøistjeneste hos NVE. Resultater fra prosjektfase 1. Norsk Regnesentral, . NR-notat SAMBA/20/18. pp 37. 2018.
Solberg, Rune; Rudjord, Øystein; Salberg, Arnt Børre; Reksten, Jarle Hamar. Further advancement of global snow mapping in CryoClim. Sentinel4CryoClim Phase 2 - Deliverables 1, 3-7. Norsk Regnesentral, Oslo. NR-notat SAMBA/44/18. pp 82. 2018.
2017Salberg, Arnt Børre; Reksten, Jarle Hamar. Semi-automatic detection of ice breeding seal pups. Norsk Regnesentral, . NR-notat SAMBA/03/2017. pp 20. 2017.
Solberg, Rune; Salberg, Arnt Børre; Reksten, Jarle Hamar; Trier, Øivind Due; Sund, Monica; Colleuille, Hervé; Kristensen, Søren Elkjær; Orthe, Nils Kristian; Øydvin, Eli Katrina. Utvikling av operasjonell flomtjeneste ved NVE. Resultater fra prosjektfase nr. 1. Norsk Regnesentral, Oslo. NR-notat SAMBA/07/2017. pp 34. 2017.
Solberg, Rune; Salberg, Arnt Børre; Reksten, Jarle Hamar; Trier, Øivind Due; Kristensen, Søren Elkjær; Orthe, Nils Kristian; Colleuille, Hervé; Sund, Monica. Utvikling av operasjonell flomtjeneste ved NVE, Resultater fra prosjektfase 2. Norsk Regnesentral, Oslo. NR-notat SAMBA/37/2017. pp 28. 2017.
2016Hamar, Jarle Bauck; Salberg, Arnt Børre; Trier, Øivind Due. Oil spill detection using optical and thermal remote sensing data. Norsk Regnesentral, . NR-notat SAMBA/55/16. pp 34. 2016.
Kermit, Martin Andreas; Trier, Øivind Due; Rudjord, Øystein; Hamar, Jarle Bauck; Aarsten, Dagrun; Gobakken, Terje; Næsset, Erik. Tree species classification with airborne LiDAR and hyperspectral imaging. HyperBio Project Report 2016. Norsk Regnesentral, Oslo. NR-notat SAMBA/60/16. pp 35. 2016.
Trier, Øivind Due; Hamar, Jarle Bauck; Kermit, Martin Andreas; Pilø, Lars Holger; Salberg, Arnt Børre. Application of remote sensing in cultural heritage management. CultSearcher project report 2015. Norsk Regnesentral, Oslo. NR-notat SAMBA/08/16. pp 195. 2016. Full-text
2015Larsen, Siri Øyen; Hamar, Jarle Bauck; Salberg, Arnt Børre. State-of-the-art review of oil spill detection using optical and thermal remote sensing data. Norsk Regnesentral, Oslo. NR-notat SAMBA/14/15. pp 27. 2015.
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