1. Vassilev SV, Baxter D, Andersen LK, Vassileva CG, Morgan TJ (2012) An overview of the organic and inorganic phase composition of biomass. Fuel 94:1–33. https://doi.org/10.1016/j.fuel.2011.09.030
2. Carillo P, Morrone B (2017) Converting residual biomasses into energy through anaerobic digestion. In: Tzortzakis N (ed) Municipal solid waste: management strategies, challenges and future directions. Nova Science Publisher, New York, p 21
3. Anwar Z, Gulfraz M, Irshad M (2014) Agro-industrial lignocellulosic biomass a key to unlock the future bio-energy: a brief review. J Radiat Res Appl Sci 7(2):163–173. https://doi.org/10.1016/j.jrras.2014.02.003
4. Parliament TE (2009) Directive 2009/28/EC of the European Parliament on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC. The European Parliament and the Council, Brussels, BE: Bruxelles
5. Macqueen D, Korhaliller S (2011) Bundles of energy: the case for renewable biomass energy 24:1–86