Hannu Nurmesniemi and Mikko Mäkelä and Risto Pöykiö and Olli Dahl, Comparison of The Fertilizer Properties of Ash Fractions from Medium-Sized (32 MW) and Small-Sized (6 MW) Municipal District Heating Plants. journal = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology. March 2011, vol. 51(3). 252 - 256 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/11180.