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2. Decree 796-2017 of the Ministry of the Environment on the acoustic environment of buildings;Finnish Ministry of the Environment,2017
3. Acoustics – Description, Measurement and Assessment of Environmental Noise − Part 2: Determination of Sound Pressure Levels,2017
4. Environmental noise regulation in Denmark. Danish reference laboratory for noise measurements c/o DELTA;Delta;Orientering nre,2012
5. Samordnade Bullerregler För Att Underlätta Bostadsbyggandet, Statens Offentliga Utredningar,2013