Terje Grøntoft
- Maintenance costs for European zinc and Portland limestone surfaces due to air pollution since the 1980s. Dans: Sustainable Cities and Society, v. 39 (mai 2018). (2018):
- Conservation-restoration costs for limestone façades due to air pollution in Krakow, Poland, meeting European target values and expected climate change. Dans: Sustainable Cities and Society, v. 29 (février 2017). (2017):