1. Swedish Geotechnical Institute (SGI), Department of Environmental Engineering, Olaus Magnus väg 35, SE-581 93 Linköping, Sweden.
2. Swedish Geotechnical Institute (SGI), Universitetsallén 32, SE-851 71 Sundsvall, Sweden.
3. Swedish Geotechnical Institute (SGI), Hugo Grauers gata 5B, SE-412 96 Göteborg, Sweden.
4. Luleå University of Technology, Waste Science and Technology, SE-971 87 Luleå, Sweden.
5. Swedish Forest Agency, Hovrättsgatan 3, Box 284, SE-90 106 Umeå, Sweden.