1. Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC;Directive,2009
2. Pellets 2002: the first world conference on pellets;Vinterbäck;Biomass Bioenerg.,2004
3. Solid Biofuels — Fuel Specifications and Classes — Part 1: General Requirements;EN14961-1,2010
4. Solid Biofuels — Fuel Specifications and Classes — Part 2: Wood Pellets for Non-industrial Use;prEN14961-2,2009
5. Solid Biofuels — Fuel Specifications and Classes — Part 6: Non-woody Pellets for Non-industrial Use;prEN14961-6,2010