van de Wiel, HJBloemen, HJTrivm2025-03-112025-03-111987https://rivm.openrepository.com/handle/10029/630838Test procedures and minimum performance requirements to demonstrate equivalency of sulphur dioxide measurement methods for EC compliance monitoring. Report EUR 11143 EN of the Commission of the European Communities.ArticleLuxembourg: Office for Official Publications of the European Communities, 1987. (Environment and Quality of Life Series)2025-03-11