Richardson, J., Björheden R. and Smith C.T. ‘Reliability of Biomass Supply Estimates is Critical to Realizing the Bioenergy Potential’. Technology Progress Report to ExCo58, Stockholm, Sweden. October 2006
Richardson, J., Björheden R. and Smith C.T. 'Certification of forest fuel production systems: a solution for sustainable use of biomass from forest residues for energy'. Technology Progress Report to ExCo56, Dublin, Ireland. May 2005