@incollection{HinterbergerStiller1998,
  author    = {Hinterberger, Friedrich and Stiller, Hartmut},
  title     = {Energy and material flows},
  booktitle = {Advances in energy studies : energy flows in ecology and economy},
  editor    = {Ulgiati, Sergio},
  publisher = {MUSIS},
  address   = {Roma},
  pages     = {275 -- 286},
  year      = {1998},
  language  = {en}
}