@techreport{Arnold2009,
  author    = {Arnold, Karin},
  title     = {GHG mitigation potential revised? : New bottom-up LCA results on the N2O emissions of biogas and suggestions for improvement},
  institution = {Wuppertal Institut f{\"u}r Klima, Umwelt, Energie},
  address   = {Wuppertal},
  pages     = {15},
  year      = {2009},
  language  = {en}
}