@article{Sadecka:2013,
  author  = "Z. Sadecka and D. Bocheński and S. Myszograj and M. Suchowska-Kisielewicz",
  title   = "Green energy from biogas in a Polish-German sewage treatment plant",
  journal = "Energy Sources, Part A : Recovery, Utilization and Environmental Effects",
  volume  = "Vol. 35",
  number  = "iss. 13",
  pages   = "1249--1255",
  year    = "2013",
}