@incollection{Wilts2017,
  author    = {Wilts, Henning},
  title     = {International policy trends and practices toward circular economy development},
  booktitle = {Constructing a green circular society},
  editor    = {Moula, Munjur E.},
  publisher = {Univ. of Helsinki},
  address   = {Helsinki},
  pages     = {39 -- 61},
  year      = {2017},
  language  = {en}
}