@misc{WetterBruegging2008,
  author    = {Christof Wetter and Elmar Br{\"u}gging},
  title     = {Guidelines for Construction of Biogas Plants. Recommended Procedures and Instructions; 16th European Biomass Conference \& Exhibition From Research to Industry and Markets},
  institution = {Energie · Geb{\"a}ude · Umwelt (EGU)},
  type      = {lecture},
  year        = {2008},
}